Professor Roy Vellaisamy

  • Professor of Intelligent Devices and Systems (Electronic & Nanoscale Engineering) / Glasgow College UESTC (Electronic & Nanoscale Engineering)

telephone: 0141 330 0856
email: Roy.Vellaisamy@glasgow.ac.uk

Room 802, James Watt South Building, James Watt School of Engineering, University of Glasgow, G12 8QQ

ORCID iDhttps://orcid.org/0000-0003-1432-9950

Research interests

Research interests

Intelligent devices and systems for sensing application

Wearable thermoelectric and piezoresistive devices

Neuromorphic devices

https://scholar.google.com.hk/citations?user=Yh8GEfEAAAAJ&hl=en

Brief biography:

Roy Vellaisamy is a Professor of Intelligent systems at the James Watt School of Engineering, University of Glasgow. He works on multidisciplinary research blending device physics with materials chemistry and electronic engineering. He has published over 200 articles in journals such as Nature Communications, Advanced Materials, Advanced Functional Materials, Analytical Chemistry etc. In addition, he has 21 US/International/Chinese patents​. He received gold medal for hisSensor Platform” at the International Exhibition of Inventions Geneva 2019.

Intelligent Sensors for water and food quality monitoring

Growing industrialization and urbanization has put human beings and other living organisms at risk against new threats due to the contamination of food, water and air. These Contaminants endanger all the living organisms in this world, especially for human beings genetic disorders and unknown diseases become common nowadays. The WHO statistics show that more than 422 million people worldwide are suffering from contamination related illness. The growing prevalence of such disorders has been linked to exposure to chemicals in plastic, food and water. Although regulatory steps have been taken to minimize risk, cases of overexposure still occur. Detection of these chemicals is done in testing labs using expensive and time consuming mass spectrometer systems that require specially trained users. In the regard, our work is based on real-time monitoring system for a rapid pre-screening test that could curtail cases of contamination. 

 

  • Venkatesh, S.; Li, T.; Wang, X.-S.; Yeung, C.-C.; Pei, K.; Sun, Q.-J.; Wu, W.; Li, R. K. Y.; Lam, M. H. W.; Chan, P. K. L.; et al. Dual-Gated Transistor Platform for On-Site Detection of Lead Ions at Trace Levels.(2018) Analytical Chemistry, 90 (12), 7399–7405.
  • Venkatesh, S., Yeung, C.-C., Sun, Q.-J., Zhuang, J., Li, T., Li, R.K.Y., Roy, V.A.L. Selective and sensitive onsite detection of phthalates in common solvents (2018) Sensors and Actuators, B: Chemical, 259, pp. 650-657.

 

Point of Care (PoC) diagnostic tools for the screening of cancer biomarkers 

Point of care sensing technology is a rapidly growing area in the field of diagnostics and it has been estimated that a 100% accurate point of care diagnostic system can save up to 625,000 lives annually. We focus on smart electronic device to perform point of care devices testing and diagnosis. For instance, we have successfully made PoC electronic devices for screening Prostate cancer biomarkers in urine and extending to detect other biomarkers in body fluids/blood serum. 

A. L. Roy VELLAISAMY, Hon Wah Michael LAM, Shishir VENKATESH, Chi Chung Yeung, "A method and an apparatus for determining a presence or an amount of a polymine or its derivative in a sample"; US patent application no: 16/127,321

A. L. Roy VELLAISAMY, "An Electrochemical Detector"; US patent application no: 15/393,336

Wearable devices for real-time monitoring of human motions using piezoresistive and thermoelectric sensors.

Real-time monitoring of physiological signals such as wrist pulse, body temperature, and body motion provides valuable information for disease diagnosis and treatment. Furthermore, skin sensors are used as pressure sensors, temperature sensors, and humidity sensors etc. Particularly, the skin-like piezoresistive pressure sensor, which convert external force into an electrical signal and thermoelectric senors which converts the body heat into electricity have advantages of simple fabrication procedures and signal acquisition. We focus on materials engineering for the fabrication of skin sensors.

 

  • Sun, Q., Zhao, X., Zhou, Y., Yeung, C., Wu, W., Venkatesh, S., Xu, Z., Wylie, J. J., Li, W., Roy, V. A. L. Fingertip-Skin-Inspired Highly Sensitive and Multifunctional Sensor with Hierarchically Structured Conductive Graphite/Polydimethylsiloxane Foams (2019) Advanced Functional Materials, 29(18), no. 1808829.
  • Sun, Q.-J., Zhuang, J., Venkatesh, S., Zhou, Y., Han, S.-T., Wu, W., Kong, K.-W., Li, W.-J., Chen, X., Li, R.K.Y., Roy, V.A.L. Highly Sensitive and Ultrastable Skin Sensors for Biopressure and Bioforce Measurements Based on Hierarchical Microstructures (2018) ACS Applied Materials and Interfaces, 10 (4), pp. 4086-4094.

 

Engineering of materials for the application in neuromorphic devices.

Constructing neuro-inspired architectures with novel artificial devices ensures memorizing and learning with lower energy consumption and higher density which may overcome the data traffic bottleneck in von Neumann computing system. In this project, we finetune and engineer wide range materials for the construction of synaptic transistors.

 

  • Lv, Z.; Wang, Y.; Chen, Z.; Sun, L.; Wang, J.; Chen, M.; Xu, Z.; Liao, Q.; Zhou, L.; Chen, X.; Zhou, Y.; Han, S. T.; Roy, A. L. Vellaisamy; Phototunable Biomemory Based on Light-Mediated Charge Trap (2018) Advanced Science. 5 (9), 1800714.
  • Zhou, L., Mao, J.-Y., Ren, Y., Yang, J.-Q., Zhang, S.-R., Zhou, Y., Liao, Q., Zeng, Y.-J., Shan, H., Xu, Z., Fu, J., Wang, Y., Chen, X., Lv, Z., Han, S.-T., Roy, V.A.L. Biological Spiking Synapse Constructed from Solution Processed Bimetal Core-Shell Nanoparticle Based Composites (2018) Small.14(28) 1800288.
  • Lv, Z., Zhou, Y., Han, S.-T., Roy, V.A.L. From biomaterial-based data storage to bio-inspired artificial synapse (2018) Materials Today, 21(5) 537-552.
  • Wang, Y., Lv, Z., Liao, Q., Shan, H., Chen, J., Zhou, Y., Zhou, L., Chen, X., Roy, V.A.L., Wang, Z., Xu, Z., Zeng, Y.-J., Han, S.-T. Synergies of Electrochemical Metallization and Valance Change in All-Inorganic Perovskite Quantum Dots for Resistive Switching (2018) Advanced Materials,30 (28), 180032 .
  • Zhou, Y., Han, S.-T., Chen, X., Wang, F., Tang, Y.-B., Roy, V.A.L., An upconverted photonic nonvolatile memory (2014), Nature Communications, 5, art. no. 4720

 

Single cell measurements 

In the field of cellular biology, single cell analysis method is standing as a powerful tool for developing a deep understanding on biological system and cellular heterogeneity. Most of the current understanding of cell biology is built upon the population averaged measurement methods which lead to false conclusions due to presence of large cell population. We design a system of single cell analysis method by coupling a nano-needle and Single Cell Transistor for real-time and in-situ electrical analysis. This Single Cell Transistor method promises a giant leap for an experimenter in electrophysiology as a versatile tool and a potential replacement for the patch clamp method, to study single cell activity via direct measurement in real time.

  • Saw Lin Oo, Shishir Venkatesh, Abdul-Mojeed Ilyas, Vaithinathan Karthikeyan,
    Clement Manohar Arava, Eva Yi Kong, Chi-Chung Yeung, Xianfeng Chen, Peter K. N. Yu, and Vellaisamy A. L. Roy; Gating a Single Cell: A Label-Free and Real-Time Measurement Method for Cellular Progression (2020), Analytical Chemistry, 92, 2, 1738-1745

 

Publications

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Number of items: 228.

2021

Barzegar, M. H., Sabzehmeidani, M. M., Ghaedi, M., Avargani, V. M., Moradi, Z., Roy, V. A.L. and Heidari, H. (2021) S-scheme heterojunction g-C3N4/TiO2 with enhanced photocatalytic activity for degradation of a binary mixture of cationic dyes using solar parabolic trough reactor. Chemical Engineering Research and Design, 174, pp. 307-318. (doi: 10.1016/j.cherd.2021.08.015)

Kwan, W. S., Roy, V. A. L. and Yu, K. N. (2021) Review on toxic effects of di(2-ethylhexyl) phthalate on zebrafish embryos. Toxics, 9(8), 193. (doi: 10.3390/toxics9080193)

Ghannam, R. , Xia, Y., Shen, D., Fernandez, F. A., Heidari, H. and Roy, V. A.L. (2021) Reconfigurable surfaces using fringing electric fields from nanostructured electrodes in nematic liquid crystals. Advanced Theory and Simulations, 4(7), 2100058. (doi: 10.1002/adts.202100058)

Ilyas, A. O., Alam, M. K., Musah, J.-D., Yang, M., Lam, Y. W., Roy, V. A. L. and Lau, C. (2021) Investigation on the direct and bystander effects in HeLa cells exposed to very low α-radiation using electrical impedance measurement. ACS Omega, 6(22), pp. 13995-14003. (doi: 10.1021/acsomega.0c05888) (PMID:34124424) (PMCID:PMC8190804)

Venkatesh, S., Yeung, C.-C., Li, T., Lau, S. C., Sun, Q.-J., Li, L.-Y., Li, J. H., Lam, M. H.W. and Roy, V. A. L. (2021) Portable molecularly imprinted polymer-based platform for detection of histamine in aqueous solutions. Journal of Hazardous Materials, 310, 124609. (doi: 10.1016/j.jhazmat.2020.124609) (PMID:33257120)

Musah, J.-D., Ilyas, A.M., Novitskii, A., Serhiienko, I., Egbo, K. O., Saianand, G., Khovaylo, V., Kwofie, S., Yu, K. M. and Roy, V. A.L. (2021) Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric material. Journal of Alloys and Compounds, 857, 157599. (doi: 10.1016/j.jallcom.2020.157559)

Musah, J.-D., Chen, G., Novitski, A., Serhiienko, I., Ayotunde E., A., Khovaylo, V., Wu, C.-M. L., Zapien, J. A. and Vellaisamy, R. A.L. (2021) Ultra-low thermal conductivity in dual doped n-type Bi2Te3 material for enhanced thermoelectric properties. Advanced Electronic Materials, 7(2), 2000910. (doi: 10.1002/aelm.202000910)

Sun, Q.-J., Lei, Y., Zhao, X.-H., Han, J., Cao, R., Wu, W., Heidari, H. , Li, W.-J., Sun, Q. and Roy, V. A.L. (2021) Scalable fabrication of hierarchically structured graphite/polydimethylsiloxane composite films for large-area triboelectric nanogenerators and self-powered tactile sensing. Nano Energy, 80, 105521. (doi: 10.1016/j.nanoen.2020.105521)

Sabzehmeidani, M. M., Mahnaee, S., Ghaedi, M., Heidari, H. and Roy, V. A.L. (2021) Carbon based materials: a review of adsorbents for inorganic and organic compounds. Materials Advances, 2(2), pp. 598-627. (doi: 10.1039/D0MA00087F)

Lin Oo, S., Venkatesh, S., Karthikeyan, V., Arava, C. M., Pathikonda, S., Yu, P. K. N., Lau, T. C. K., Chen, X. and Roy, V. A.L. (2021) Highly sensitive and cost-effective portable sensor for early gastric carcinoma diagnosis. Sensors, 21(8), 2639. (doi: 10.3390/s21082639)

2020

Zuo, G. et al. (2020) A β-cyclodextrin modified graphitic carbon nitride with Au co-catalyst for efficient photocatalytic hydrogen peroxide production. Nanomaterials, 10(10), 1969. (doi: 10.3390/nano10101969)

Saianand, G., Gopalan, A.-I., Vellaisamy, R. A.L. , Wilson, G. J., Jakmunee, J., Sonar, P., Lin, L., Kim, S.-W. and Kang, S.-W. (2020) Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells. Materials Letters, 277, 128393. (doi: 10.1016/j.matlet.2020.128393)

Zhao, J., Ghannam, R. , Htet, K. O., Liu, Y., Law, M.-k., Roy, V. A.L. , Imran, M. A. , Michel, B. and Heidari, H. (2020) Self-powered implantable medical devices: photovoltaic energy harvesting review. Advanced Healthcare Materials, 9(17), 2000779. (doi: 10.1002/adhm.202000779) (PMID:32729228)

Sun, Q.-J., Zhao, X.-H., Yeung, C.-C., Tian, Q., Kong, K.-W., Wu, W., Venkatesh, S., Li, W.-J. and Roy, V. A.L. (2020) Bioinspired, self-powered, and highly sensitive electronic skin for sensing static and dynamic pressures. ACS Applied Materials and Interfaces, 12(33), pp. 37239-37247. (doi: 10.1021/acsami.0c10788) (PMID:32814376)

Kwan, W.S., Nikezic, D., Vellaisamy, R. and Yu, K.N. (2020) Multiple stressor effects of radon and phthalates in children: background information and future research. International Journal of Environmental Research and Public Health, 17(8), 2898. (doi: 10.3390/ijerph17082898)

Karthikeyan, V., Surjadi, J. U., Wong, J. C.K., Kannan, V., Lam, K.-H., Chen, X., Lu, Y. and Roy, V. A.L. (2020) Wearable and flexible thin film thermoelectric module for multi-scale energy harvesting. Journal of Power Sources, 455, 227983. (doi: 10.1016/j.jpowsour.2020.227983)

Wang, Y. et al. (2020) Near-infrared-irradiation-mediated synaptic behavior from tunable charge-trapping dynamics. Advanced Electronic Materials, 6(2), 1900765. (doi: 10.1002/aelm.201900765)

Karthikeyan, V., Arava, C. M., Hlaing, M. Z., Chen, B., Chan, C. H., Lam, K.-H. and Roy, V. A.L. (2020) Dislocation-induced ultra-low lattice thermal conductivity in rare earth doped β-Zn4Sb3. Scripta Materialia, 174, pp. 95-101. (doi: 10.1016/j.scriptamat.2019.08.037)

Ding, G., Yang, B., Zhou, K., Zhang, C., Wang, Y., Yang, J.-Q., Han, S.-T., Zhai, Y., Roy, V. A. L. and Zhou, Y. (2020) Synaptic plasticity and filtering emulated in metal-organic frameworks nanosheets based transistors. Advanced Electronic Materials, 6(1), 1900978. (doi: 10.1002/aelm.201900978)

Oo, S. L., Ilyas, A.-M., Karthikeyan, V., Arava, C. M., Kong, E. Y., Yeung, C.-C., Chen, X., Yu, P. K.N. and Vellaisamy, R. A.L. (2020) Gating a single cell: a label-free and real-time measurement method for cellular progression. Analytical Chemistry, 92(2), pp. 1738-1745. (doi: 10.1021/acs.analchem.9b03136) (PMID:31904934)

Jingqi, H., Tang, K.-M., Cheng, S.-C., Ng, C.-O., Chun, Y.-K., Chan, S.-L., Yiu, S.-M., Tse, M.-K., Roy, V. A.L. and Ko, C.-C. (2020) Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes. Inorganic Chemistry Frontiers, 7, pp. 786-794. (doi: 10.1039/C9QI01278H)

2019

Zhang, S. et al. (2019) Extracellular nanomatrix-induced self-organization of neural stem cells into miniature substantia nigra-like structures with therapeutic effects on Parkinsonian rats. Advanced Science, 6(24), 1901822. (doi: 10.1002/advs.201901822) (PMID:31871862) (PMCID:PMC6918115)

KaniAmuthana, B., Vinotha, S., Vaithinathan, K., Roy, V. A.L. and Thilakan, P. (2019) Influence of nitrogen dopant source on the structural, photoluminescence and electrical properties of ZnO thin films deposited by pulsed spray pyrolysis. Ceramics International, 45(18A), pp. 24324-24330. (doi: 10.1016/j.ceramint.2019.08.147)

Wu, W. et al. (2019) Significantly improved dielectric properties of polylactide nanocomposites via TiO2 decorated carbon nanotubes. Composites Part A: Applied Science and Manufacturing, 127, 105650. (doi: 10.1016/j.compositesa.2019.105650)

City University of Hong Kong CityU (2019) Electric device for detecting pressure. .

Huang, Z., Ouyang, D., Ma, R., Wu, W., Roy, V. A.L. and Choy, W. C. H. (2019) A general method: designing a hypocrystalline hydroxide intermediate to achieve ultrasmall and well-dispersed ternary metal oxide for efficient photovoltaic devices. Advanced Functional Materials, 29(45), 1904684. (doi: 10.1002/adfm.201904684)

Parse, H. B., Patil, I., Ingavale, S., Manohar, C., Roy, V.A.L. and Kakade, B. (2019) Efficient oxygen electroreduction kinetics by titanium carbide@nitrogen doped carbon nanocomposite. International Journal of Hydrogen Energy, 44(42), pp. 23649-23657. (doi: 10.1016/j.ijhydene.2019.07.065)

Xu, B., Saianand, G., Roy, V.A.L. , Qiao, Q., Reza, K. M. and Kang, S.-W. (2019) Employing PCBTDPP as an efficient donor polymer for high performance ternary polymer solar cells. Polymers, 11(9), 1423. (doi: 10.3390/polym11091423) (PMID:31470690) (PMCID:PMC6780059)

Cheng, X., Md, A., Lian, H., Zhong, Z., Guo, H., Dong, Q. and Roy, V.A.L. (2019) Study on synthesis, characterization, and nonvolatile memory behavior of ferrocene-containing metallopolymers. Journal of Organometallic Chemistry, 892, pp. 34-40. (doi: 10.1016/j.jorganchem.2019.04.025)

Lv, Z., Chen, M., Qian, F., Roy, V. A.L. , Ye, W., She, D., Wang, Y., Xu, Z.-X., Zhou, Y. and Han, S.-T. (2019) Mimicking neuroplasticity in a hybrid biopolymer transistor by dual modes modulation. Advanced Functional Materials, 29(31), 1902374. (doi: 10.1002/adfm.201902374)

Zuo, G. et al. (2019) Efficient photocatalytic hydrogen peroxide production over TiO2 passivated by SnO2. Catalysts, 9(7), 623. (doi: 10.3390/catal9070623)

Liu, T., Wu, W., Liao, K.-N., Sun, Q., Gong, X., Roy, V. A.L. , Yu, Z.-Z. and Li, R. K.Y. (2019) Fabrication of carboxymethyl cellulose and graphene oxide bio-nanocomposites for flexible nonvolatile resistive switching memory devices. Carbohydrate Polymers, 214, pp. 213-220. (doi: 10.1016/j.carbpol.2019.03.040)

Sun, Q.-J., Li, T., Wu, W., Venkatesh, S., Zhao, X.-H., Xu, Z.-X. and Roy, V. A. L. (2019) Printed high-k dielectric for flexible low-power extended gate field-effect transistor in sensing pressure. ACS Applied Electronic Materials, 1(5), pp. 711-717. (doi: 10.1021/acsaelm.9b00081)

Manoj Kumar, N., Venkatramanan, K. and Vellaisamy, A. L. R. (2019) A statistical method for determining optical and geometrical characteristics of cirrus clouds. Climate, 7(5), 72. (doi: 10.3390/cli7050072)

Sun, Q.-J., Zhao, X.-H., Zhou, Y., Yeung, C.-C., Wu, W., Venkatesh, S., Xu, Z.-X., Wylie, J. J., Li, W.-J. and Roy, V. A.L. (2019) Fingertip‐skin‐inspired highly sensitive and multifunctional sensor with hierarchically structured conductive graphite/polydimethylsiloxane foams. Advanced Functional Materials, 29(18), 1808829. (doi: 10.1002/adfm.201808829)

City University of Hong Kong CityU (2019) Emissions treatment apparatus and a method for treating emissions. .

Wu, W., Liu, T., Deng, X., Sun, Q., Cao, X., Feng, Y., Wang, B., Roy, V. A.L. and Li, R. K.Y. (2019) Ecofriendly UV-protective films based on poly (propylene carbonate) biocomposites filled with TiO2 decorated lignin. International Journal of Biological Macromolecules, 126, pp. 1030-1036. (doi: 10.1016/j.ijbiomac.2018.12.273) (PMID:30611805)

Zuo, G. et al. (2019) Finely dispersed Au nanoparticles on graphitic carbon nitride as highly active photocatalyst for hydrogen peroxide production. Catalysis Communications, 123, pp. 69-72. (doi: 10.1016/j.catcom.2019.02.011)

Ye, F., Zeng, J.-J., Qiu, Y.-B., Cai, X.-M., Wang, B., Wang, H., Zhang, D.-P., Fan, P. and Roy, V.A.L. (2019) Deposition-rate controlled nitrogen-doping into cuprous oxide and its thermal stability. Thin Solid Films, 674, pp. 44-51. (doi: 10.1016/j.tsf.2019.02.005)

Cai, X.-M., Wang, B., Ye, F., Vaithinathan, K., Zeng, J.-J., Zhang, D.-P., Fan, P. and Roy, V.A.L. (2019) Tuning the photoluminescence, conduction mechanism and scattering mechanism of ZnSnN2. Journal of Alloys and Compounds, 779, pp. 237-243. (doi: 10.1016/j.jallcom.2018.11.239)

Chen, X. et al. (2019) Controlled nonvolatile transition in polyoxometalates-graphene oxide hybrid memristive devices. Advanced Materials Technologies, 4(3), 1800551. (doi: 10.1002/admt.201800551)

Zhang, S.-R., Zhou, L., Mao, J.-Y., Ren, Y., Yang, J.-Q., Yang, G.-H., Zhu, X., Han, S.-T., Roy, V. A.L. and Zhou, Y. (2019) Artificial synapse emulated by charge tapping-based resistive switching device. Advanced Materials Technologies, 4(2), 1800342. (doi: 10.1002/admt.201800342)

Quy, V. N., Duy, D. T. X., Kien, D. T., Tu, V. H., Sun, Q., Roy, V. A. L. , Pham, V.-T. and Dao, T. T. (2019) Wearable Device for Monitoring Heart Rate Based on Low-Cost Piezoresistive Sensor. In: 2019 8th International Conference on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 13-15 May 2019, ISBN 9781728111841 (doi:10.1109/MOCAST.2019.8741734)

2018

Cai, X.-M. et al. (2018) Fabricating ZnSnN2 with cosputtering. Surface and Coatings Technology, 359, pp. 169-174. (doi: 10.1016/j.surfcoat.2018.12.080)

Zhang, N. et al. (2018) Serpentine Ni3Ge2O5(OH)4 nanosheets with tailored layers and size for efficient oxygen evolution reactions. Small, 14(48), 1803015. (doi: 10.1002/smll.201803015) (PMID:30328265)

Wua, W., He, H., Liu, T., Wei, R., Cao, X., Sun, Q., Venkatesh, S., Yuen, R. K.K., Roy, V. A.L. and Li, R. K.Y. (2018) Synergetic enhancement on flame retardancy by melamine phosphate modified lignin in rice husk ash filled P34HB biocomposites. Composites Science and Technology, 168, pp. 246-254. (doi: 10.1016/j.compscitech.2018.09.024)

Tuwahatu, C.A., Yeung, C.C., Lam, Y.W. and Roy, V.A.L. (2018) The molecularly imprinted polymer essentials: curation of anticancer, ophthalmic, and projected gene therapy drug delivery systems. Journal of Controlled Release, 287, pp. 24-34. (doi: 10.1016/j.jconrel.2018.08.023) (PMID:30110614)

Lv, Z. et al. (2018) Phototunable biomemory based on light-mediated charge trap. Advanced Science, 5(9), 1800714. (doi: 10.1002/advs.201800714) (PMCID:PMC6145397)

City University of Hong Kong CityU (2018) Thermo-electric generator module. .

Wu, W., Han, S.-T., Venkatesh, S., Sun, Q., Peng, H., Zhou, Y., Yeung, C., Li, R.K.Y. and Roy, V.A.L. (2018) Biodegradable skin-inspired nonvolatile resistive switching memory based on gold nanoparticles embedded alkali lignin. Organic Electronics, 59, pp. 382-388. (doi: 10.1016/j.orgel.2018.05.051)

Wang, Y. et al. (2018) Synergies of electrochemical metallization and valance change in all-inorganic perovskite quantum dots for resistive switching. Advanced Materials, 30(28), 1800327. (doi: 10.1002/adma.201800327) (PMID:29782667)

Zhou, L. et al. (2018) Biological spiking synapse constructed from solution processed bimetal core–shell nanoparticle based composites. Small, 14(28), 1800288. (doi: 10.1002/smll.201800288) (PMID:29806246)

Zhai, Y., Yang, J.-Q., Zhou, Y., Mao, J.-Y., Ren, Y., Roy, V. A. L. and Han, S.-T. (2018) Toward non-volatile photonic memory: concept, material and design. Materials Horizons, 5(4), pp. 641-654. (doi: 10.1039/C8MH00110C)

Venkatesh, S. et al. (2018) Dual-gated transistor platform for on-site detection of lead ions at trace levels. Analytical Chemistry, 90(12), pp. 7399-7405. (doi: 10.1021/acs.analchem.8b00841) (PMID:29812910)

Wu, W., Liu, T., He, H., Wu, X., Cao, X., JIn, J., Sun, Q., Roy, V. A.L. and Li, R. K.Y. (2018) Rhelogical and antibacterial performance of sodium alginate/zinc oxide composite coating for cellulosic paper. Colloids and Surfaces B: Biointerfaces, 167, pp. 538-543. (doi: 10.1016/j.colsurfb.2018.04.058) (PMID:29730575)

Lv, Z., Zhou, Y., Han, S.-T. and Roy, V.A.L. (2018) From biomaterial-based data storage to bio-inspired artificial synapse. Materials Today, 21(5), pp. 537-552. (doi: 10.1016/j.mattod.2017.12.001)

Huang, Z., Cheng, J., Ren, X., Zhuang, J., Roy, V. A.L. , Burkhartsmeyer, J. M., Wong, K. S. and Choy, W. C.H. (2018) All-room-temperature solution-processed new nanocomposites based hole transport layer from synthesis to film formation for high-performance organic solar cells towards ultimate energy-efficient fabrication. Nano Energy, 47, pp. 26-34. (doi: 10.1016/j.nanoen.2018.02.019)

Venkatesh, S., Yeung, C.-C., Sun, Q.-J., Zhuang, J., Li, T., Li, R. K.Y. and Roy, V. A.L. (2018) Selective and sensitive onsite detection of phthalates in common solvents. Sensors and Actuators B: Chemical, 259, pp. 650-657. (doi: 10.1016/j.snb.2017.12.107)

Wang, Y., Shan, H., Sun, X., Dong, L., Feng, Y., Hu, Q., Ye, W., Roy, V.A.L. , Xu, J. and Xu, Z.-X. (2018) Fabrication of octamethyl substituted zinc(II) phthalocyanine nanostructure via exfoliation and use for solution-processed field-effect transistor. Organic Electronics, 55, pp. 15-20. (doi: 10.1016/j.orgel.2018.01.004)

Zhou, L., Mao, J., Ren, Y., Han, S.-T., Roy, V. A.L. and Zhou, Y. (2018) Recent advances of flexible data storage devices based on organic nanoscaled materials. Small, 14(10), 1703126. (doi: 10.1002/smll.201703126) (PMID:29377568)

Liu, W., Sun, M., Yu, L., Song, X., Li, F., Lee, C.-S. and Roy, V.A.L. (2018) Single-component oligomer nanoparticle-based size-dependent dual-emission modulation. Journal of Physical Chemistry C, 122(8), pp. 4199-4205. (doi: 10.1021/acs.jpcc.7b12272)

Peng, H. et al. (2018) Interface engineering via photopolymerization-induced phase separation for flexible UV-responsive phototransistors. ACS Applied Materials and Interfaces, 10(8), pp. 7487-7496. (doi: 10.1021/acsami.7b19371) (PMID:29411961)

Wang, Y., Lv, Z., Chen, X., Zhou, Y., Roy, V.A.L. and Han, S.-T. (2018) Emerging perovskite materials for high density data storage and artificial synapses. Journal of Materials Chemistry C, 6(7), pp. 1600-1617. (doi: 10.1039/C7TC05326F)

Liang, B., Chen, Y., He, J., Chen, C., Liu, W., He, Y., Liu, X., Zhang, N. and Roy, V.A.L. (2018) Controllable fabrication and tuned electrochemical performance of potassium co–ni phosphate microplates as electrodes in supercapacitors. ACS Applied Materials and Interfaces, 10(4), pp. 3506-3514. (doi: 10.1021/acsami.7b14552) (PMID:29309122)

Sun, Q.-J. et al. (2018) Highly sensitive and ultrastable skin sensors for biopressure and bioforce measurements based on hierarchical microstructures. ACS Applied Materials and Interfaces, 10(4), pp. 4086-4094. (doi: 10.1021/acsami.7b16611) (PMID:29345473)

Chen, X., Zhou, Y., Roy, V. A.L. and Han, S.-T. (2018) Evolutionary metal oxide clusters for novel applications: toward high‐density data storage in nonvolatile memories. Advanced Materials, 30(3), 1703950. (doi: 10.1002/adma.201703950) (PMID:29058796)

Liu, L., Lu, Q., Yang, S., Guo, J., Tian, Q., Yao, W., Guo, Z., Roy, V. A. L. and Wu, W. (2018) All-printed solid-state microsupercapacitors derived from self-template synthesis of Ag@PPy nanocomposites. Advanced Materials Technologies, 3(1), 1700206. (doi: 10.1002/admt.201700206)

Kandasamy, B., Ramar, G., Zhou, L., Han, S.-T., Venkatesh, S., Cheng, S.-C., Xu, Z., Ko, C.-C. and Roy, V.A.L. (2018) Polypyridyl chromium(III) complexes for non-volatile memory application: impact of the coordination sphere on memory device performance. Journal of Materials Chemistry C: Materials for Optical and Electronic Devices, 6(6), pp. 1445-1450. (doi: 10.1039/c7tc04986b)

Kong, K. W., Law, J., Chen, M., Suo, Z., Jia, B., Roy, V. A.L. , Chan, H.-Y. and Li, W. J. (2018) Micro-Dispensing of Graphene Oxide Based Capacitive Tactile Sensors for Human Pressure-Pulse Detection. In: 2018 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS), Nagoya, Japan, 04-08 Jul 2018, ISBN 9781538648414 (doi:10.1109/MARSS.2018.8481149)

2017

Feng, Y., Xu, J., Shan, H., Dong, L., Sun, X., Hu, Q., Wang, Y., Roy, V.A.L. and Xu, Z.-X. (2017) Organometal halide perovskite as hole injection enhancer in organic light-emitting diode. Organic Electronics, 51, pp. 257-263. (doi: 10.1016/j.orgel.2017.09.027)

Lau, C. T.-S., Chan, C., Zhang, K. Y., Roy, V. A.L. and Lo, K. K.-W. (2017) Photophysical, cellular-uptake, and bioimagings studies of luminescent ruthenium(II)–polypyridine complexes containing a d-fructose pendant. European Journal of Inorganic Chemistry, 2017(44), pp. 5288-5294. (doi: 10.1002/ejic.201701038)

Peng, H., Yu, L., Chen, G., Bohl, T. W., Ye, Y., Zhou, X., Xue, Z., Roy, V.A.L. and Xie, X. (2017) Low-voltage-driven and highly-diffractive holographic polymer dispersed liquid crystals with spherical morphology. RSC Advances, 7(82), pp. 51847-51857. (doi: 10.1039/c7ra08949j)

City University of Hong Kong CityU (2017) Electronic device for data storage and a method of producing an electronic device for data storage. .

Valsange, N. G. et al. (2017) A new pyrene cored small organic molecule with a flexible alkyl spacer: a potential solution processable blue emitter with bright photoluminescence. New Journal of Chemistry, 41(19), pp. 11383-11390. (doi: 10.1039/c7nj01921a)

Yan, L., Zhou, M., Zhang, X., Huang, L., Chen, W., Roy, V. A.L. , Zhang, W. and Chen, X. (2017) A novel type of aqueous dispersible ultrathin-layered double hydroxide nanosheets for in vivo bioimaging and drug delivery. ACS Applied Materials and Interfaces, 9(39), pp. 34185-34193. (doi: 10.1021/acsami.7b05294) (PMID:28915005)

Yan, L. et al. (2017) Size controllable and surface tunable zeolitic imidazolate framework-8–poly(acrylic acid sodium salt) nanocomposites for pH responsive drug release and enhanced in vivo cancer treatment. ACS Applied Materials and Interfaces, 9(38), pp. 32990-33000. (doi: 10.1021/acsami.7b10064) (PMID:28876048)

Zhou, L., Han, S.-T., Shu, S., Zhuang, J., Yan,, Y., Sun, Q.-J., Zhou, Y. and Roy, V. A. L. (2017) Localized surface plasmon resonance-mediated charge trapping/ detrapping for core-shell nanorod-based optical memory cells. ACS Applied Materials and Interfaces, 9(39), pp. 34101-34110. (doi: 10.1021/acsami.7b07486) (PMID:28891295)

Han, S.-T., Peng, H., Sun, Q., Venkatesh, S., Chung, K.-S., Lau, S. C., Zhou, Y. and Roy, V.A.L. (2017) An overview of the development of flexible sensors. Advanced Materials, 29(33), 1700375. (doi: 10.1002/adma.201700375) (PMID:28671711)

Zhou, Y., Zhou, L., Yan, Y., Han, S.-T., Zhuang, J., Sun, Q.-J. and Roy, V.A.L. (2017) Real-time storage of thermal signals in organic memory with floating core-shell nanoparticles. Journal of Materials Chemistry C: Materials for Optical and Electronic Devices, 5(33), pp. 8415-8423. (doi: 10.1039/c7tc01762f)

City University of Hong Kong CityU (2017) Nickel complexes for flexible transistors and inverters. .

Ye, F. et al. (2017) Doping cuprous oxide with fluorine and its band gap narrowing. Journal of Alloys and Compounds, 721, pp. 64-69. (doi: 10.1016/j.jallcom.2017.05.272)

Padmanabhan, R., Venkatramanan, K., Girivel, S., Kasthuri, K., Usharani, A., Gayathri, A. and Vellaichamy, R. (2017) Mathematical and Experimental Analysis of Ultrasound Velocity and Refractive Index in Binary Mixtures of Pharmaceutically Important Polymer—PEG 600. In: International Conference on Recent Trends in Materials Science and Applications (ICRTMSA 2016), Tiruchirappalli, India, 29 Feb 2016, pp. 709-722. ISBN 9783319448893 (doi:10.1007/978-3-319-44890-9_57)

Padmanabhan, R., Venkatramanan, K., Girivel, S., Kasthuri, K., Usharani, A. and Vellaichamy, R. (2017) Thermal and Rheological Studies of Aqueous Solutions of PEG 400 and PEG 1500 Having Pharmaceutical Applications. In: International Conference on Recent Trends in Materials Science and Applications (ICRTMSA 2016), Tiruchirappalli, India, 29 Feb 2016, pp. 723-730. ISBN 9783319448893 (doi:10.1007/978-3-319-44890-9_58)

Cheng, J., Ren, X., Zhu, H. L., Mao, J., Liang, C., Zhuang, J., Roy, V. A.L. and Choy, W. C.H. (2017) Pre- and post-treatments free nanocomposite based hole transport layer for high performance organic solar cells with considerably enhanced reproducibility. Nano Energy, 34, pp. 76-85. (doi: 10.1016/j.nanoen.2017.02.021)

Cai, X.-M., Su, X.-Q., Ye, F., Roy, V.A.L. , Zhang, D.-P., Luo, J.-T., Fan, P., Zheng, Z.-H., Liang, G.-X. and Xiao, J.-J. (2017) Fabrication and properties of pure-phase Cu2O co-doped with zinc and indium. Journal of Alloys and Compounds, 697, pp. 5-10. (doi: 10.1016/j.jallcom.2016.12.081)

Wu, W., Wu, C., Peng, H., Sun, Q., Zhou, L., Zhuang, J., Cao, X., Roy, V.A.L. and Li, R. K.Y. (2017) Effect of nitrogen-doped graphene on morphology and properties of immiscible poly(butylene succinate)/polylactide blends. Composites Part B: Engineering, 113, pp. 300-307. (doi: 10.1016/j.compositesb.2017.01.037)

Fu, P., Wang, Z., Lin, Z., Liu, Y. and Roy, V. A.L. (2017) The microwave dielectric properties of transparent ZnAl2O4 ceramics fabricated by spark plasma sintering. Journal of Materials Science: Materials in Electronics, 28(13), pp. 9589-9595. (doi: 10.1007/s10854-017-6707-y)

Mao, J., Sha, W. E. I., Zhang,, H., Ren, X., Zhuang, J., Roy, V. A. L. , Wong, K. S. and Choy, W. C. H. (2017) Novel direct nanopatterning approach to fabricate periodically nanostructured perovskite for optoelectronic applications. Advanced Functional Materials, 27(10), 1606525. (doi: 10.1002/adfm.201606525)

Chen, G., Ni, M., Peng, H., Huang, F., Liao, Y., Wang, M., Zhu, J., Roy, V.A.L. and Xie, X. (2017) Photoinitiation and inhibition under monochromatic green light for storage of colored 3D images in holographic polymer-Ddspersed liquid crystals. ACS Applied Materials and Interfaces, 9(2), pp. 1810-1819. (doi: 10.1021/acsami.6b13129) (PMID:28001037)

Liang, B., Zhang, N., Chen, C., Liu, X., Ma, R., Tong, S., Mei, Z., Roy, V. A.L. , Wang, H. and Tang, Y. (2017) Hierarchical yolk-shell layered potassium niobate for tuned pH-dependent photocatalytic H2 evolution. Catalysis Science and Technology, 7(4), pp. 1000-1005. (doi: 10.1039/c6cy02640k)

2016

Wu, W., Jiang, C.Z. and Roy, V.A.L. (2016) Designed synthesis and surface engineering strategies of magnetic iron oxide nanoparticles for biomedical applications. Nanoscale, 8(47), pp. 19421-19474. (doi: 10.1039/c6nr07542h) (PMID:27812592)

Zhuang, J. et al. (2016) Solution-processed rare-earth oxide thin films for alternative gate dielectric application. ACS Applied Materials and Interfaces, 8(45), pp. 31128-31135. (doi: 10.1021/acsami.6b09670) (PMID:27762140)

Nasiri, N., Bo, R., Hung, T. F., Roy, V. A.L. , Fu, L. and Tricoli, A. (2016) Tunable band-selective UV-photodetectors by 3D self-sssembly of heterogeneous nanoparticle networks. Advanced Functional Materials, 26(40), pp. 7359-7366. (doi: 10.1002/adfm.201602195)

Chen, C., Zhang, N., Liu, X., He, Y., Wan, H., Liang, B., Ma, R., Pan, A. and Roy, V. A.L. (2016) Polypyrrole-modified NH4NiPO4·H2O nanoplate arrays on Ni foam for efficient electrode in electrochemical capacitors. ACS Sustainable Chemistry and Engineering, 4(10), pp. 5578-5584. (doi: 10.1021/acssuschemeng.6b01347)

Sun, Q.-J., Zhuang, J., Yan, Y., Zhou, L., Zhou,, Y., Han, S.-T., Wu, W., Peng, H.-Y., Li, R. K. Y. and Roy, V. A. L. (2016) Polymer-modified solution-processed metal oxide dielectrics on aluminum foil substrate for flexible organic transistors. Physica Status Solidi A: Applications and Materials Science, 213(9), pp. 2509-2517. (doi: 10.1002/pssa.201600067)

Xu, J., Wang, Y., Shan, H., Lin, Y., Chen, Q., Roy, V. A. L. and Xu, Z. (2016) Ultrasound-induced organogel formation followed by thin film fabrication via simple doctor blading technique for field-effect transistor applications. ACS Applied Materials and Interfaces, 8(29), pp. 18991-18997. (doi: 10.1021/acsami.6b04817) (PMID:27377991)

Xu, J., Wang, Y., Chen, Q., Lin, Y., Shan, H., Roy, V.A.L. and Xu, Z. (2016) Enhanced lifetime of organic light-emitting diodes using soluble tetraalkyl-substituted copper phthalocyanines as anode buffer layers. Journal of Materials Chemistry C, 4(31), pp. 7377-7382. (doi: 10.1039/c6tc01864e)

Cui, S., Dai, Z., Tian, Q., Liu, J., Xiao, X., Jiang, C., Wu, W. and Roy, V. A.L. (2016) Wetting properties and SERS applications of ZnO/Ag nanowire arrays patterned by a screen printing method. Journal of Materials Chemistry C, 4(26), pp. 6371-6379. (doi: 10.1039/c6tc00714g)

Xu, J.-J., Yang, X.-B., Feng, H., Wang, Y.-L., Shan, H.-Q., Xu, Z.-X., Ng, C.-O., Huang, L.-B., Ko, C.-C. and Roy, V. A. L. (2016) Self-assembled nanostructures of linear arylacetylenes and their aza-substituted analogues. AIP Advances, 6(6), 065210. (doi: 10.1063/1.4954036)

Zhang, N. et al. (2016) Monoclinic tungsten oxide with {100} facet orientation and tuned electronic band structure for enhanced photocatalytic oxidations. ACS Applied Materials and Interfaces, 8(16), pp. 10367-10374. (doi: 10.1021/acsami.6b02275) (PMID:27045790)

City University of Hong Kong CityU (2016) Metal nanoparticle monolayer. .

Shiliang, J., Qi-Jun, S., Venkatesh, S., Yan, Y., Zhou, Y., Zhuang, J., Zhou, L., Han, S., Xu, Z.-X. and Roy, V.A.L. (2016) Low-voltage Extended Gate Organic Thin Film Transistors for Ion Sensing Based on Semi-conducting Polymer Electrodes. In: SPIE OPTO 2016, San Francisco, CA, USA, 13-18 Feb 2016, (doi:10.1117/12.2218397)

Salunke, J. K. et al. (2016) Phenothiazine and carbazole substituted pyrene based electroluminescent organic semiconductors for OLED devices. Journal of Materials Chemistry C, 4(5), pp. 1009-1018. (doi: 10.1039/c5tc03690a)

Du, X., Chiu, S. H.-M., Ong, D. H.-C., Vellaisamy, R. and Lam, M. H.-W. (2016) Metal ion-responsive photonic colloidal crystalline micro-beads with electrochemically tunable photonic diffraction colours. Sensors and Actuators B: Chemical, 223, pp. 318-323. (doi: 10.1016/j.snb.2015.09.116)

Han, S.-T., Zhou, Y., Chen, B., Wang, C., Zhou, L., Yan, Y., Zhuang, J., Sun, Q., Zhang, H. and Roy, V. A.L. (2016) Hybrid flexible resistive random access memory-gated transistor for novel nonvolatile data storage. Small, 12(3), pp. 390-396. (doi: 10.1002/smll.201502243) (PMID:26578160)

Sun, Q.-J., Zhuang, J., Yan, Y., Zhou, Y., Han, S.-T., Zhou, L. and Roy, V. A.L. (2016) Investigation on the mobility and stability in organic thin film transistors consisting of bilayer gate dielectrics. Physica Status Solidi A: Applications and Materials Science, 213(1), pp. 79-84. (doi: 10.1002/pssa.201532380)

Ren, J., Zhang, Y., Liu, F., Yan, Y., Qiu, M., Roy, V.A.L. , Zheng, H., Sun, M. and Yang, R. (2016) (E)-1,2-Di(thiophen-2-yl)ethene based high mobility polymer for efficient photovoltaic devices without any post treatment. RSC Advances, 6(72), pp. 68049-68057. (doi: 10.1039/c6ra13970a)

2015

City University of Hong Kong CityU (2015) Phthalocyanine/ polymer nanocomposite ink for optoelectonics. .

Zhou, L., Han, S.-T., Zhuang, J., Yan, Y., Zhou, Y., Sun, Q.-J., Xu, Z.-X. and Roy, V.A.L. (2015) Mobility enhancement of P3HT-based OTFTs upon blending with Au nanorods. Particle and Particle Systems Characterization, 32(12), pp. 1051-1057. (doi: 10.1002/ppsc.201500168)

Yan, Y., Huang, L.-B., Zhou, Y., Han, S.-T., Zhou, L., Sun, Q., Zhuang, J., Peng, H., Yan, H. and Roy, V.A.L. (2015) Surface decoration on polymeric gate dielectrics for flexible organic field-effect transistors via hydroxylation and subsequent monolayer self-assembly. ACS Applied Materials and Interfaces, 7(42), pp. 23464-23471. (doi: 10.1021/acsami.5b05363) (PMID:26439239)

Yan, Y., Huang, L.-B., Zhou, Y., Han, S.-T., Zhou, L., Zhuang, J., Xu, Z.-X. and Roy, V.A.L. (2015) Self-aligned, full solution process polymer field-effect transistor on flexible substrates. Scientific Reports, 5, 15770. (doi: 10.1038/srep15770) (PMID:26497412) (PMCID:PMC4620563)

City University of Hong Kong CityU (2015) Flexible amine sensor based on ultrathin poly-thiophene thin film transistor. .

Zhuang, J. et al. (2015) Photo-reactive charge trapping memory based on lanthanide complex. Scientific Reports, 5, 14998. (doi: 10.1038/srep14998) (PMID:26449199) (PMCID:PMC4598868)

Poon, N. H., Yan, Y., Zhou, L., Wang, D., Chan, C.-H. and Roy, V. A.L. (2015) Frequency selective surfaces with nanoparticles unit cell. Micromachines, 6(10), pp. 1421-1426. (doi: 10.3390/mi6101421)

Han, S.-T., Zhou, Y., Chen, B., Zhou, L., Yan, Y., Zhang, H. and Roy, V.A.L. (2015) Two-dimensional molybdenum disulphide nanosheet-covered metal nanoparticle array as a floating gate in multi-functional flash memories. Nanoscale, 7(41), pp. 17496-17503. (doi: 10.1039/c5nr05054e) (PMID:26445097)

Wu, W., Liu, L., Dai, Z., Liu, J., Yang, S., Zhou, L., Xiao, X., Jiang, C. and Roy, V. A. L. (2015) Erratum: Low-cost, disposable, flexible and highly reproducible screen printed SERS substrates for the detection of various chemicals. Scientific Reports, 5, 12205. (doi: 10.1038/srep12205) (PMID:26192753) (PMCID:PMC4507397)

Zhou, Y., Han, S.-T., Yan, Y., Zhou, L., Huang, L.-B., Zhuang, J., Sonar, P. and Roy, V.A.L. (2015) Ultra-flexible nonvolatile memory based on donor-acceptor diketopyrrolopyrrole polymer blends. Scientific Reports, 5, 10683. (doi: 10.1038/srep10683) (PMID:26029856) (PMCID:PMC4450595)

Wu, W., Liu, L., Dai, Z., Liu, J., Yang, S., Zhou, L., Xiao, X., Jiang, C. and Roy, V. A. L. (2015) Low-cost, disposable, flexible and highly reproducible screen printed SERS substrates for the detection of various chemicals. Scientific Reports, 5, 10208. (doi: 10.1038/srep10208) (PMID:25974125) (PMCID:PMC4431467)

Han, S.-T., Zhou, Y., Zhou, L., Yan, Y., Huang, L.-B., Wu, W. and Roy, V.A.L. (2015) CdSe/ZnS core-shell quantum dots charge trapping layer for flexible photonic memory. Journal of Materials Chemistry C, 3(13), pp. 3173-3180. (doi: 10.1039/c4tc01901f)

Zhou, Y., Han, S.-T., Sonar, P., Ma, X., Chen, J., Zheng, Z. and Roy, V.A.L. (2015) Reversible conversion of dominant polarity in ambipolar polymer/graphene oxide hybrids. Scientific Reports, 5, 9446. (doi: 10.1038/srep09446) (PMID:25801827) (PMCID:PMC4371103)

Wong, K., Chen, C., Wei, K., Roy, V.A.L. and Chathoth, S.M. (2015) Diffusion of gold nanoparticles in toluene and water as seen by dynamic light scattering. Journal of Nanoparticle Research, 17(3), 153. (doi: 10.1007/s11051-015-2965-x)

Wu, W., Lei, M., Yang, S., Zhou, L., Liu, L., Xiao, X., Jiang, C. and Roy, V.A.L. (2015) A one-pot route to the synthesis of alloyed Cu/Ag bimetallic nanoparticles with different mass ratios for catalytic reduction of 4-nitrophenol. Journal of Materials Chemistry A, 3(7), pp. 3450-3455. (doi: 10.1039/c4ta06567k)

Zhou, L., Yang, J., Zhou, Y., Han, S.-T., Huang, L., Yan, Y. and Roy, V.A.L. (2015) Dual plasmonic-enhanced bulk-heterojunction solar cell incorporating gold nanoparticles into solution-processed anode buffer layer and active layer. Physica Status Solidi - Rapid Research Letters, 9(2), pp. 115-119. (doi: 10.1002/pssr.201409401)

Han, S.-T., Zhou, Y., Sonar, P., Wei, H., Zhou, L., Yan, Y., Lee, C.-S. and Roy, V.A.L. (2015) Surface engineering of reduced graphene oxide for controllable ambipolar flash memories. ACS Applied Materials and Interfaces, 7(3), pp. 1699-1708. (doi: 10.1021/am5072833) (PMID:25537669)

Wu, W., Jiang, C. and Roy, V.A.L. (2015) Recent progress in magnetic iron oxide-semiconductor composite nanomaterials as promising photocatalysts. Nanoscale, 7(1), pp. 38-58. (doi: 10.1039/c4nr04244a) (PMID:25406760)

Cai, X.-M. et al. (2015) The n-type conduction of indium-doped Cu2O thin films fabricated by direct current magnetron co-sputtering. Applied Physics Letters, 107, 083901. (doi: 10.1063/1.4928527)

Liu, J., Wu, W., Tian, Q., Yang, S., Sun, L., Xiao, X., Ren, F., Jianga, C. and Roy, V. A.L. (2015) Tube-like α-Fe2O3@Ag/AgCl heterostructure: controllable synthesis and enhanced plasmonic photocatalytic activity. RSC Advances, 5(75), pp. 61239-61248. (doi: 10.1039/c5ra10247b)

Peng, H., Chen, G., Ni, M., Yan, Y., Zhuang, J., Roy, V.A.L. , Li, R. K.Y. and Xie, X. (2015) Classical photopolymerization kinetics, exceptional gelation, and improved diffraction efficiency and driving voltage in scaffolding morphological H-PDLCs afforded using a photoinitibitor. Polymer Chemistry, 6(48), pp. 8259-8269. (doi: 10.1039/C5PY01414J)

Wang, Y.-L., Xu, J.-J., Lin, Y.-W., Shan, H.-Q., Yan, Y., Roy, V.A.L. and Xu, Z.-X. (2015) Tetra-methyl substituted copper (II) phthalocyanine as a hole injection enhancer in organic light-emitting diodes. AIP Advances, 5(10), 107205. (doi: 10.1063/1.4932633)

Yan, Y., Zhou, Y., Huang, L.-B., Han, S.-T., Zhou, L., Xu, Z.-X. and Roy, V.A.L. (2015) Enhanced self-assembled monolayer treatment on polymeric gate dielectrics with ultraviolet/ozone assistance in organic thin film transistors. RSC Advances, 5(79), pp. 64471-64477. (doi: 10.1039/c5ra13246k)

2014

Liu, Q., Bao, X., Yan, Y., Du, Z., Roy, V.A.L. , Zhu, D., Sun, M., Lee, C.S. and Yang, R. (2014) Hydrophilic poly-ether side-chained benzodithiophene-based homopolymer for solar cells and field-effect transistors. Journal of Materials Science, 50(5), pp. 2263-2271. (doi: 10.1007/s10853-014-8789-8)

Huang, L.-B., Zhou, Y., Han, S.-T., Yan, Y., Zhou, L., Chen, W., Zhou, P., Chen, X. and Roy, V.A.L. (2014) Controlled assembly of silver nanoparticles monolayer on 3D polymer nanotubes and their applications. Small, 10(22), pp. 4645-4650. (doi: 10.1002/smll.201401352) (PMID:25087595)

Wang, N., Bao, X., Yan, Y., Ouyang, D., Sun, M., Roy, V.A.L. , Lee, C. S. and Yang, R. (2014) Synthesis and photovoltaic properties of conjugated D-A copolymers based on thienyl substituted pyrene and diketopyrrolopyrrole for polymer solar cells. Journal of Polymer Science, Part A: Polymer Chemistry, 52(22), pp. 3198-3204. (doi: 10.1002/pola.27378)

Salunke, J.K., Sonar, P., Wong, F.L., Roy, V.A.L. , Lee, C.S. and Wadgaonkar, P.P. (2014) Pyrene based conjugated materials: Synthesis, characterization and electroluminescent properties. Physical Chemistry Chemical Physics, 16(42), pp. 23320-23328. (doi: 10.1039/c4cp03693j) (PMID:25259763)

Huang, L.-B., Zhou, Y., Han, S.-T., Yan, Y., Zhou, L. and Roy, V.A.L. (2014) The role of a nanoparticle monolayer on the flow of polymer melts in nanochannels. Nanoscale, 6(19), pp. 11013-11018. (doi: 10.1039/c4nr03002h) (PMID:25132623)

Liu, D., Xiao, M., Du, Z., Yan, Y., Han, L., Roy, V.A.L. , Sun, M., Zhu, W., Lee, C.S. and Yang, R. (2014) Solution-processed, indacenodithiophene-based, small-molecule organic field-effect transistors and solar cells. Journal of Materials Chemistry C, 2(36), pp. 7523-7530. (doi: 10.1039/c4tc00721b)

Tian, W., Huang, L., Wang, D. and Roy, V.A.L. (2014) A general, rapid and solvent-free approach to fabricating nanostructured polymer surfaces. Science China Technological Sciences, 57(12), pp. 2328-2333. (doi: 10.1007/s11431-014-5647-5)

Zhou, Y., Han, S.-T., Chen, X., Wang, F., Tang, Y.-B. and Roy, V.A.L. (2014) An upconverted photonic nonvolatile memory. Nature Communications, 5, 4720. (doi: 10.1038/ncomms5720) (PMID:25144762)

Huang, L.-B., Xu, Z.-X., Chen, X., Tian, W., Han, S.-T., Zhou, Y., Xu, J.-J., Yang, X.-B. and Roy, V.A.L. (2014) Poly(3-hexylthiophene) nanotubes with tunable aspect ratios and charge transport properties. ACS Applied Materials and Interfaces, 6(15), pp. 11874-11881. (doi: 10.1021/am5006207) (PMID:25014608)

Tian, Q. et al. (2014) Tube-like ternary α-Fe2O3@SnO 2@Cu2O sandwich heterostructures: Synthesis and enhanced photocatalytic properties. ACS Applied Materials and Interfaces, 6(15), pp. 13088-13097. (doi: 10.1021/am5029439)

Wang, H., Zhou, Y., Roy, V.A.L. , Yan, D., Zhang, J. and Lee, C.-S. (2014) Polymorphism and electronic properties of vanadyl-phthalocyanine films. Organic Electronics, 15(7), pp. 1586-1591. (doi: 10.1016/j.orgel.2014.04.024)

Zhuang, J., Han, S.-T., Zhou, Y. and Roy, V.A.L. (2014) Flash memory based on solution processed hafnium dioxide charge trapping layer. Journal of Materials Chemistry C, 2(21), pp. 4233-4238. (doi: 10.1039/c4tc00010b)

Chen, Y., Yan, Y., Du, Z., Bao, X., Liu, Q., Roy, V.A.L. , Sun, M., Yang, R. and Lee, C. S. (2014) Two-dimensional benzodithiophene and benzothiadiazole based solution-processed small molecular organic field-effect transistors & solar cells. Journal of Materials Chemistry C, 2(20), pp. 3921-3927. (doi: 10.1039/c4tc00086b)

Chu, W.-K., Ko, C.-C., Chan, K.-C., Yiu, S.-M., Wong, F.-L., Lee, C.-S. and Roy, V.A.L. (2014) A simple design for strongly emissive sky-blue phosphorescent neutral rhenium complexes: Synthesis, photophysics, and electroluminescent devices. Chemistry of Materials, 26(8), pp. 2544-2550. (doi: 10.1021/cm4038654)

Ye, F. et al. (2014) The electrical and optical properties of Cu-doped In2O 3 thin films. Thin Solid Films, 556, pp. 44-47. (doi: 10.1016/j.tsf.2014.01.006)

Xu, Z.-X. and Roy, V.A.L. (2014) Charge transport in monolayer poly(3-hexylthiophene) thin-film transistors. Chinese Physics B, 23(4), 048501. (doi: 10.1088/1674-1056/23/4/048501)

Chen, W. et al. (2014) Improved polyvinylpyrrolidone microneedle arrays with non-stoichiometric cyclodextrin. Journal of Materials Chemistry B, 2(12), pp. 1699-1705. (doi: 10.1039/c3tb21698e) (PMID:32261399)

Han, S.-T., Zhou, Y., Yang, Q.D., Zhou, L., Huang, L.-B., Yan, Y., Lee, C.-S. and Roy, V.A.L. (2014) Energy-band engineering for tunable memory characteristics through controlled doping of reduced graphene oxide. ACS Nano, 8(2), pp. 1923-1931. (doi: 10.1021/nn406505t) (PMID:24472000)

Peng, Y.-H., Xu, Z.-X., Li, C.-H., Hu, L., Roy, V.A.L. , Sun, S.-F. and Wang, J. (2014) Synthesis and characterization of a new series of nickel dithiolate compounds containing both acridinium cations and halogen anions. Inorganica Chimica Acta, 410, pp. 88-93. (doi: 10.1016/j.ica.2013.10.020)

Zhou, Y., Han, S.-T. and Roy, V.A.L. (2014) Nanocomposite dielectric materials for organic flexible electronics. In: Tjong, S.-C. (ed.) Nanocrystalline Materials: Their Synthesis-Structure-Property Relationships and Applications [Second Edition]. Elsevier: London, pp. 195-220. ISBN 9780124077966 (doi:10.1016/B978-0-12-407796-6.00006-3)

2013

Yan, L., Chen, W., Zhu, X., Huang, L., Wang, Z., Zhu, G., Roy, V.A.L. , Yu, K.N. and Chen, X. (2013) Folic acid conjugated self-assembled layered double hydroxide nanoparticles for high-efficacy-targeted drug delivery. Chemical Communications, 49(93), pp. 10938-10940. (doi: 10.1039/c3cc45714a) (PMID:24129414)

Xu, Z.-X. and Roy, V.A.L. (2013) Organic photovoltaic cells with copper (II) tetra-methyl substituted phthalocyanine. Chinese Physics B, 22(12), 128505. (doi: 10.1088/1674-1056/22/12/128505)

Zhou, Y., Han, S.-T., Zhou, L., Yan, Y., Huang, L.-B., Huang, J. and Roy, V.A.L. (2013) Flexible organic/inorganic heterojunction transistors with low operating voltage. Journal of Materials Chemistry C, 1(42), pp. 7073-7080. (doi: 10.1039/c3tc31456a)

Ng, T.-W., Chan, C.-Y., Yang, Q.-D., Wei, H.-X., Lo, M.-F., Roy, V.A.L. , Zhang, W.-J. and Lee, C.-S. (2013) Charge interaction and interfacial electronic structures in a solid-state dye-sensitized solar cell. Organic Electronics, 14(11), pp. 2743-2747. (doi: 10.1016/j.orgel.2013.07.029)

Ye, F., Zhong, X., Cai, X.-M., Huang, L.-B., Roy, V.A.L. , Jing, S.-Y., Zhang, D.-P., Fan, P., Luo, J.-T. and Tian, X.-Q. (2013) Structural, electrical, and optical properties of Zn1-xSn xO thin films deposited by reactive co-sputtering. Physica Status Solidi A: Applications and Materials Science, 210(11), pp. 2404-2408. (doi: 10.1002/pssa.201329266)

Zhou, Y., Han, S.-T., Yan, Y., Huang, L.-B., Zhou, L., Huang, J. and Roy, V.A.L. (2013) Solution processed molecular floating gate for flexible flash memories. Scientific Reports, 3, 3093. (doi: 10.1038/srep03093) (PMID:24172758) (PMCID:PMC3813938)

Han, S.-T., Zhou, Y. and Roy, V.A.L. (2013) Towards the development of flexible non-volatile memories. Advanced Materials, 25(38), pp. 5425-5449. (doi: 10.1002/adma.201301361) (PMID:24038631)

Zhou, Y., Han, S.-T., Sona, P. and Roy, V.A.L. (2013) Nonvolatile multilevel data storage memory device from controlled ambipolar charge trapping mechanism. Scientific Reports, 3, 2319. (doi: 10.1038/srep02319) (PMID:23900459) (PMCID:PMC3728587)

Han, S.-T., Zhou, Y., Yang, Q.-D., Lee, C.-S. and Roy, V.A.L. (2013) Poly(3-hexylthiophene)/gold nanoparticle hybrid system with an enhanced photoresponse for light-controlled electronic devices. Particle and Particle Systems Characterization, 30(7), pp. 599-605. (doi: 10.1002/ppsc.201300005)

Zhou, Y., Han, S.-T., Huang, L.-B., Huang, J., Yan, Y., Zhou, L. and Roy, V.A.L. (2013) A low voltage programmable unipolar inverter with a gold nanoparticle monolayer on plastic. Nanotechnology, 24(20), 205202. (doi: 10.1088/0957-4484/24/20/205202)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2013) The strain and thermal induced tunable charging phenomenon in low power flexible memory arrays with a gold nanoparticle monolayer. Nanoscale, 5(5), pp. 1972-1979. (doi: 10.1039/c2nr32579a)

Zhou, Y., Han, S., Zhou, G., Wong, W.-Y. and Roy, V.A.L. (2013) Ambipolar organic light-emitting electrochemical transistor based on a heteroleptic charged iridium(III) complex. Applied Physics Letters, 102(8), 083301. (doi: 10.1063/1.4792842)

Han, S.-T., Zhou, Y., Wang, C., He, L., Zhang, W. and Roy, V.A.L. (2013) Layer-by-layer-assembled reduced graphene oxide/gold nanoparticle hybrid double-floating-gate structure for low-voltage flexible flash memory. Advanced Materials, 25(6), pp. 872-877. (doi: 10.1002/adma.201203509) (PMID:23125077)

Yang, X.-B. et al. (2013) Importance of alkyl chain-length on the self-assembly of new Ni(qdt) 2 complexes and charge transport properties. RSC Advances, 3(30), pp. 12075-12079. (doi: 10.1039/c3ra41633j)

2012

To, W.-K., Fu, J., Yang, X., Roy, V.A.L. and Huang, Z. (2012) Porosification-reduced optical trapping of silicon nanostructures. Nanoscale, 4(19), pp. 5835-5839. (doi: 10.1039/c2nr31680c)

Sun, F., Huang, L.-B. and Vellaisamy, R. A.L. (2012) Discussion on Scientific Teaching for the Discovery-enriched Science Course. In: 2nd International Conference on Education and Education Management (EEM 2012), Hong Kong, China, 04-05 Sep 2012, pp. 574-579.

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2012) Low voltage flexible nonvolatile memory with gold nanoparticles embedded in poly(methyl methacrylate). Nanotechnology, 23(34), 344014. (doi: 10.1088/0957-4484/23/34/344014)

Zhou, Y., Han, S.-T., Xu, Z.-X., Yang, X.-B., Ng, H.-P., Huang, L.-B. and Roy, V.A.L. (2012) Functional high-k nanocomposite dielectrics for flexible transistors and inverters with excellent mechanical properties. Journal of Materials Chemistry, 22(28), pp. 14246-14253. (doi: 10.1039/c2jm31813j)

Han, S.-T., Zhou, Y., Xu, Z.-X. and Roy, V.A.L. (2012) Controllable threshold voltage shifts of polymer transistors and inverters by utilizing gold nanoparticles. Applied Physics Letters, 101(3), 033306. (doi: 10.1063/1.4737422)

Han, S.-T., Zhou, Y., Xu, Z.-X., Huang, L.-B., Yang, X.-B. and Roy, V.A.L. (2012) Microcontact printing of ultrahigh density gold nanoparticle monolayer for flexible flash memories. Advanced Materials, 24(26), pp. 3556-3561. (doi: 10.1002/adma.201201195) (PMID:22678769)

Chen, W.-B., Zu, Z.-X., Li, K., Chui, S. S.-Y., Roy, V.A.L. , Lai, P.-T. and Che, C.-M. (2012) Improving the performance of polymer solar cells by adjusting the crystallinity and nanoscale phase separation. Chinese Physics B, 21(7), 078401. (doi: 10.1088/1674-1056/21/7/078401)

Ng, C.K.M., Chong, E.Y.W., Roy, V.A.L. , Cheung, K.M.C., Yeung, K.W.K. and Yu, K.N. (2012) Fabrication of micropillar substrates using replicas of alpha-particle irradiated and chemically etched PADC films. Applied Radiation and Isotopes, 70(7), pp. 1432-1435. (doi: 10.1016/j.apradiso.2011.11.019)

Zhou, L., Xu, Z.-X., Zhou, Y., Feng, Y., Zhou, X.-G., Xiang, H.-F. and Roy, V.A.L. (2012) Structure-charge transport relationship of 5,15-dialkylated porphyrins. Chemical Communications, 48(42), pp. 5139-5141. (doi: 10.1039/c2cc31137b) (PMID:22517491)

Xu, J., Yang, X., Wang, H., Chen, X., Luan, C., Xu, Z., Lu, Z., Roy, V.A.L. , Zhang, W. and Lee, C.-S. (2012) Correction to Arrays of ZnO/ZnxCd1–xSe nanocables: band gap engineering and photovoltaic applications. Nano Letters, 12(4), p. 2177. (doi: 10.1021/nl301181u)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2012) Polymer-nanoparticle hybrid dielectrics for flexible transistors and inverters. Journal of Materials Chemistry, 22(9), pp. 4060-4065. (doi: 10.1039/c2jm15256h)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2012) Controlled ambipolar charge transport through a self-assembled gold nanoparticle monolayer. Advanced Materials, 24(9), pp. 1247-1251. (doi: 10.1002/adma.201104375) (PMID:22298461)

Hui, W., Shi, F., Yan, K., Peng, M., Cheng, X., Luo, Y., Chen, X., Roy, V.A.L. , Cui, Y. and Wang, Z. (2012) Fe 3O4/Au/Fe 3O4 nanoflowers exhibiting tunable saturation magnetization and enhanced bioconjugation. Nanoscale, 4(3), pp. 747-751. (doi: 10.1039/c2nr11489e) (PMID:22193883)

2011

Low, K.-H., Xu, Z.-X., Xiang, H.-F., Chui, S. S.-Y., Roy, V.A.L. and Che, C.-M. (2011) Bis(5,7-dimethyl-8-hydroxyquinolinato)platinum(II) complex for efficient organic heterojunction solar cells. Chemistry: An Asian Journal, 6(12), pp. 3223-3229. (doi: 10.1002/asia.201100450) (PMID:21905232)

Han, S.-T., Zhou, Y., Xu, Z.-X., Roy, V.A.L. and Hung, T.F. (2011) Nanoparticle size dependent threshold voltage shifts in organic memory transistors. Journal of Materials Chemistry, 21(38), pp. 14575-14580. (doi: 10.1039/c1jm12113h)

Xu, J., Yang, X., Wang, H., Chen, X., Luan, C., Xu, Z., Lu, Z., Roy, V.A.L. , Zhang, W. and Lee, C.-S. (2011) Arrays of ZnO/ZnxCd1- xse nanocables: Band gap engineering and photovoltaic applications. Nano Letters, 11(10), pp. 4138-4143. (doi: 10.1021/nl201934k) (PMID:21875102)

Xu, Z.-X., Roy, V.A.L. , Low, K.-H. and Che, C.-M. (2011) Bulk heterojunction photovoltaic cells based on tetra-methyl substituted copper(ii) phthalocyanine:P3HT:PCBM composite. Chemical Communications, 47(34), pp. 9654-9656. (doi: 10.1039/c1cc13827h) (PMID:21799988)

Shi, S.L., Xu, S.J., Xu, Z.-X., Roy, V.A.L. and Che, C.-M. (2011) Broadband second harmonic generation from ZnO nano-tetrapods. Chemical Physics Letters, 506(4-6), pp. 226-229. (doi: 10.1016/j.cplett.2011.03.006)

Zhou, Y., Roy, V.A.L. , Xu, Z.-X., Kwong, H.Y., Wang, H.-B. and Lee, C.S. (2011) Low temperature processed bilayer dielectrics for low-voltage flexible saturated load inverters. Applied Physics Letters, 98(9), 092904. (doi: 10.1063/1.3558913)

Che, C.-M., Chow, C.-F., Yuen, M.-Y., Roy, V.A.L. , Lu, W., Chen, Y., Chui, S. S.-Y. and Zhu, N. (2011) Single microcrystals of organoplatinum(II) complexes with high charge-carrier mobility. Chemical Science, 2(2), pp. 216-220. (doi: 10.1039/c0sc00479k)

2010

Low, K.-H., Roy, V.A.L. , Chui, S. S.-Y., Chan, S. L.-F. and Che, C.-M. (2010) Highly conducting two-dimensional copper(i) 4-hydroxythiophenolate network. Chemical Communications, 46(39), pp. 7328-7330. (doi: 10.1039/c0cc02348e) (PMID:20740247)

Xu, Z.-X., Roy, V.A.L. , Liu, Z.-T. and Lee, C.S. (2010) Importance of molecular alignment for organic photovoltaic devices. Applied Physics Letters, 97(16), 163301. (doi: 10.1063/1.3502598)

Low, K.-H., Li, C.-H., Roy, V. A.L. , Chui, S. S.-Y., Lai-Fung Chan, S. and Che, C.-M. (2010) Homoleptic copper(I) phenylselenolate polymer as a single-source precursor for Cu2Se nanocrystals. Structure, photoluminescence and application in field-effect transistor. Chemical Science, 1(4), pp. 515-518. (doi: 10.1039/c0sc00212g)

Lei, K.-L., Chow, C.-F., Tsang, K.-C., Lei, E. N.Y., Roy, V.A.L. , Lam, M. H.W., Lee, C.S., Pun, E.Y.B. and Li, J. (2010) Long aliphatic chain coated rare-earth nanocrystal as polymer-based optical waveguide amplifiers. Journal of Materials Chemistry, 20(35), pp. 7526-7529. (doi: 10.1039/c0jm00706d)

Chui, S. S.-Y., Low, K.-H., Lu, J., Roy, V.A.L. , Chan, S. L.-F. and Che, C.-M. (2010) Homoleptic platinum(II) and palladium(II) organothiolates and phenylselenolates: solvothermal synthesis, structural determination, optical properties, and single-source precursors for PdSe and PdS nanocrystals. Chemistry: An Asian Journal, 5(9), pp. 2062-2074. (doi: 10.1002/asia.201000233) (PMID:20665775)

Chow, C.-F., Roy, V.A.L. , Ye, Z., Lam, M. H.W., Lee, C.S. and Lau, K.C. (2010) Novel high proton conductive material from liquid crystalline 4-(octadecyloxy)phenylsulfonic acid. Journal of Materials Chemistry, 20(30), pp. 6245-6249. (doi: 10.1039/c0jm00523a)

Lo, M.F., Ng, T.W., Liu, T.Z., Roy, V.A.L. , Lai, S.L., Fung, M.K., Lee, C.S. and Lee, S.T. (2010) Limits of open circuit voltage in organic photovoltaic devices. Applied Physics Letters, 96(11), 113303. (doi: 10.1063/1.3360336)

Roy, V.A.L. , Lo, K. K.-W., Chow, C.-F., Chui, S. S.Y. and Lee, C.S. (2010) Alignment of charge-transfer complexes for molecular devices. Journal of Materials Chemistry, 20(3), pp. 434-438. (doi: 10.1039/b913172h)

2009

Cao, Y.L. et al. (2009) Coaxial nanocables of p-type zinc telluride nanowires sheathed with silicon oxide: Synthesis, characterization and properties. Nanotechnology, 20(45), 455702. (doi: 10.1088/0957-4484/20/45/455702)

Lu, W., Chen, Y., Roy, V.A.L. , Chui, S. S.-Y. and Che, C.-M. (2009) Supramolecular polymers and chromonic mesophases self-organized from phosphorescent cationic organoplatinum(II) complexes in water. Angewandte Chemie (International Edition), 48(41), pp. 7621-7625. (doi: 10.1002/anie.200903109) (PMID:19746377)

Xu, Z.-X., Xiang, H.-F., Roy, V.A.L. , Chui, S. S.-Y., Wang, Y., Lai, P.T. and Che, C.-M. (2009) Organic field-effect transistors fabricated with N, N′ -substituted dialkyl-1,3,8,10-tetramethylquinacridone compounds. Applied Physics Letters, 95(12), 123305. (doi: 10.1063/1.3233961)

Liu, Z.T., Lo, M.F., Wang, H.B., Ng, T.W., Roy, V.A.L. , Lee, C.S. and Lee, S.T. (2009) Influence of the donor/acceptor interface on the open-circuit voltage in organic solar cells. Applied Physics Letters, 95(9), 093307. (doi: 10.1063/1.3222975)

Wong, C.-Y., Lai, L.-M., Keybg, S.-L. and Roy, V.A.L. (2009) Trends for the crystallinity, optical and electrical properties of post-thermal annealed ZnO nanorods. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 164(2), pp. 80-84. (doi: 10.1016/j.mseb.2009.07.007)

Han, J., Chang, X.-Y., Zhu, L.-R., Pang, M.-L., Meng, J.-B., Chui, S. S.-Y., Lai, S.-W. and Roy, V.A.L. (2009) Microwave-assisted synthesis, structure, and tunable liquid-crystal properties of 2, 5-diaryl-1, 3, 4-thiadiazole derivatives through peripheral n-alkoxy chains. Chemistry: An Asian Journal, 4(7), pp. 1099-1107. (doi: 10.1002/asia.200800440) (PMID:19492397)

2008

Yuen, M.-Y. et al. (2008) Semiconducting and electroluminescent nanowires self-assembled from organoplatinum(II) complexes. Angewandte Chemie (International Edition), 47(51), pp. 9895-9899. (doi: 10.1002/anie.200802981) (PMID:19006156)

Xu, Z.-X., Xiang, H.-F., Roy, V.A.L. , Chui, S. S.-Y., Che, C.-M. and Lai, P.T. (2008) Field-effect transistor fabricated with nickel(II) etioporphyrin-I micrometer-sized crystals. Applied Physics Letters, 93(22), 223305. (doi: 10.1063/1.3040319)

So, M.-H., Roy, V.A.L. , Xu, Z.-X., Chui, S. S.-Y., Yuen, M.-Y., Ho, C.-M. and Che, C.-M. (2008) Controlled self-assembly of functional metal octaethylporphyrin 1D nanowires by solution-phase precipitative method. Chemistry: An Asian Journal, 3(11), pp. 1968-1978. (doi: 10.1002/asia.200800162) (PMID:18767102)

Wong, C.-Y., Lai, L.-M., Leung, S.-L., Roy, V.A.L. and Pin, E. Y.-B. (2008) Ambipolar charge transport and electroluminescence properties of ZnO nanorods. Applied Physics Letters, 93(2), 023502. (doi: 10.1063/1.2957671)

Che, C.-M., Xiang, H.-F., Chui, S. S.-Y., Xu, Z.-X., Roy, V.A.L. , Yan, J. J., Fu, W.-F., Lai, P.T. and Williams, I. D. (2008) A high-performance organic field-effect transistor based on platinum(II) porphyrin: peripheral substituents on porphyrin ligand significantly affect film structure and charge mobility. Chemistry: An Asian Journal, 3(7), pp. 1092-1103. (doi: 10.1002/asia.200800011) (PMID:18528916)

Stallinga, P., Roy, V.A.L. , Xu, Z.-X., Xiang, H.-F. and Che, C.-M. (2008) Metal-insulator-metal transistors. Advanced Materials, 20(11), pp. 2120-2124. (doi: 10.1002/adma.200702525)

Xiang, H.-F., Xu, Z.-X., Roy, V.A.L. , Yan, B.-P., Chan, S.-C., Che, C.-M. and Lai, P.T. (2008) Deep-red to near-infrared electrophosphorescence based on bis(8-hydroxyquinolato) platinum(II) complexes. Applied Physics Letters, 92(16), 163305. (doi: 10.1063/1.2906892)

Roy, V.A.L. , Wong, E. L.-M., Ko, B. C.-B., Chao, C.-T., Yan, S.-C., Yan, B., Wu, J.-C. and Che, C.-M. (2008) Ambipolar charge transport in DNA molecules. Advanced Materials, 20(7), pp. 1258-1262. (doi: 10.1002/adma.200701179)

Che, C.-M., Li, C.-H., Chui, S. S.-Y., Roy, V.A.L. and Low, K.-H. (2008) Homoleptic copper(I) arylthiolates as a new class of p-type charge carriers: structures and charge mobility studies. Chemistry: A European Journal, 14(10), pp. 2965-2975. (doi: 10.1002/chem.200700723) (PMID:18350558)

Xiang, H.-F. et al. (2008) Star-configured carbazole as an efficient near-ultraviolet emitter and hole-transporting material for organic light-emitting devices. Applied Physics Letters, 92(7), 073305. (doi: 10.1063/1.2841063)

2007

Chen, W.-B., Xiang, H.-F., Xu, Z.-X., Yan, B.-P., Roy, V.A.L. and Che, C.-M. (2007) Improving efficiency of organic photovoltaic cells with pentacene-doped CuPc layer. Applied Physics Letters, 91(19), 191109. (doi: 10.1063/1.2806195)

Roy, V. A. L. , Xu, Z.-X., Stallinga, P., Ziang, H.-F., Yan, B. and Che, C.-M. (2007) Nanocomposite Field Effect Transistors based on Zinc Oxide/Polymer Blends. In: 2007 Digest of Papers Microprocesses and Nanotechnology, Kyoto, Japan, 05-08 Nov 2007, pp. 104-105. ISBN 9784990247249 (doi:10.1109/IMNC.2007.4456126)

Yan, B.-P., Cheung, C.C.C., Kui, S.C.F., Xiang, H.-F., Roy, V.A.L. , Xu, S.-J. and Che, C.-M. (2007) Efficient white organic light-emitting devices based on phosphorescent platinum(II)/fluorescent dual-emitting layers. Advanced Materials, 19(21), pp. 3599-3603. (doi: 10.1002/adma.200602683)

Yan, B.-P., Cheung, C. C.C., Kui, S. C.F., Roy, V.A.L. and Che, C.-M. (2007) High-efficiency orange and yellow organic light-emitting devices using platinum(II) complexes containing extended π -conjugated cyclometalated ligands as dopant materials. Applied Physics Letters, 91(6), 063508. (doi: 10.1063/1.2768868)

Xu, Z.-X. and Roy, V.A.L. (2007) Nanocomposite field effect transistors based on zinc oxide/polymer blends. Applied Physics Letters, 90(22), 223509. (doi: 10.1063/1.2740478)

Xiang, H.-F., Xu, Z.-X., Roy, V.A.L. , Che, C.-M. and Lai, P.T. (2007) Method for measurement of the density of thin films of small organic molecules. Review of Scientific Instruments, 78(3), 034104. (doi: 10.1063/1.2712932)

2006

Lu, W., Roy, V.A.L. and Che, C.-M. (2006) Self-assembled nanostructures with tridentate cyclometalated platinum(II) complexes. Chemical Communications, 2006(38), pp. 3972-3974. (doi: 10.1039/b607422g) (PMID:17003869)

2005

Xu, Z.-X., Lin, J.-D., Roy, V.A.L. , Ou, Y. and Liao, D.-W. (2005) Catalytic synthesis of carbon nanotubes and carbon spheres using Kaolin supported catalyst. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 123(2), pp. 102-106. (doi: 10.1016/j.mseb.2005.07.012)

Roy, V.A.L. , Xu, Z.-X., Zhi, Y.-G., Yu, S.-C. and Che, C.-M. (2005) Metal-Organic Pentacene Derivative With Well Ordered Morphology for the Application of Low Voltage Organic Thin Film Transistors. In: Optics and Photonics 2005, San Diego, CA, USA, 31 Jul - 04 Aug 2005, 59401L. (doi:10.1117/12.629622)

Roy, V.A.L. , Zhi, Y.-G., Xu, Z.-X., Yu, S.-C., Chan, P.W.H. and Che, C.-M. (2005) Functionalized arylacetylene oligomers for organic thin-film transistors (OTFTs). Advanced Materials, 17(10), pp. 1258-1261. (doi: 10.1002/adma.200401998)

2004

Santato, C. et al. (2004) Tetracene-based organic light-emitting transistors: optoelectronic properties and electron injection mechanism. Synthetic Metals, 146(3), pp. 329-334. (doi: 10.1016/j.synthmet.2004.08.028)

Zheng, R.K., Liu, H., Zhang, X.X., Roy, V.A.L. and Djurišić, A.B. (2004) Exchange bias and the origin of magnetism in Mn-doped ZnO tetrapods. Applied Physics Letters, 85(13), pp. 2589-2591. (doi: 10.1063/1.1795366)

Djurišić, A.B., Choy, W.C.H., Roy, V.A.L. , Leung, Y.H., Kwong, C.Y., Cheah, K.W., Gundu Rao, T.K., Chan, W.K., Fei Lui, H. and Surya, C. (2004) Photoluminescence and electron paramagnetic resonance of ZnO tetrapod structures. Advanced Functional Materials, 14(9), pp. 856-864. (doi: 10.1002/adfm.200305082)

Kwong, C.Y., Djurišić, A.B., Roy, V.A.L. , Lai, P.T. and Chan, W.K. (2004) Influence of the substrate temperature to the performance of tris (8-hydroxyquinoline) aluminum based organic light emitting diodes. Thin Solid Films, 458(1-2), pp. 281-286. (doi: 10.1016/j.tsf.2004.01.042)

Roy, V.A.L. , Kwong, C.Y., Djurišić, A.B., Pode, R.B., Gundu Rao, T.K. and Chan, W.K. (2004) Improvement in the Environmental Stability of Tris(8-hydroxyquinoline) Aluminum by Substitution of Sulphonic Acid in 8-hydroxyquinoline Ligand. In: Optical Science and Technology, SPIE's 48th Annual Meeting, San Diego, CA, USA, 03-08 Aug 2003, pp. 283-290. (doi:10.1117/12.503009)

Roy, V.A.L. , Djurišić, A.B., Liu, H., Zhang, X.X., Leung, Y.H., Xie, M.H., Gao, J., Lui, H.F. and Surya, C. (2004) Magnetic properties of Mn doped ZnO tetrapod structures. Applied Physics Letters, 84(5), pp. 756-758. (doi: 10.1063/1.1645312)

Roy, V.A.L. , Pode, R.B., Rao, T.K.G., Djurišić, A.B. and Baldacchini, G. (2004) Optical and ESR studies of Tris(8-hydroxyquinoline)aluminum. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 106(1), pp. 85-88. (doi: 10.1016/j.mseb.2003.09.017)

2003

Roy, V.A.L. , Djurišić, A.B., Li, Q., Xu, S.J., Lui, H.F., Surya, C. and Gao, J. (2003) Simple Technique for Bulk Quantity Synthesis of ZnO Tetrapod Nanorods. In: Optical Science and Technology, SPIE's 48th Annual Meeting, San Diego, CA, USA, 03-08 Aug 2003, pp. 51-58. (doi:10.1117/12.504700)

Roy, V.A.L. , Djurišić, A.B., Chan, W.K., Gao, J., Lui, H.F. and Surya, C. (2003) Luminescent and structural properties of ZnO nanorods prepared under different conditions. Applied Physics Letters, 83(1), pp. 141-143. (doi: 10.1063/1.1589184)

2002

Roy, V.A.L. and Pode, R.B. (2002) Optical studies of doped aluminum tris (8-hydroxy quinoline) thin films. Thin Solid Films, 417(1-2), pp. 180-182. (doi: 10.1016/S0040-6090(02)00643-0)

This list was generated on Thu Sep 23 19:47:16 2021 BST.
Number of items: 228.

Articles

Barzegar, M. H., Sabzehmeidani, M. M., Ghaedi, M., Avargani, V. M., Moradi, Z., Roy, V. A.L. and Heidari, H. (2021) S-scheme heterojunction g-C3N4/TiO2 with enhanced photocatalytic activity for degradation of a binary mixture of cationic dyes using solar parabolic trough reactor. Chemical Engineering Research and Design, 174, pp. 307-318. (doi: 10.1016/j.cherd.2021.08.015)

Kwan, W. S., Roy, V. A. L. and Yu, K. N. (2021) Review on toxic effects of di(2-ethylhexyl) phthalate on zebrafish embryos. Toxics, 9(8), 193. (doi: 10.3390/toxics9080193)

Ghannam, R. , Xia, Y., Shen, D., Fernandez, F. A., Heidari, H. and Roy, V. A.L. (2021) Reconfigurable surfaces using fringing electric fields from nanostructured electrodes in nematic liquid crystals. Advanced Theory and Simulations, 4(7), 2100058. (doi: 10.1002/adts.202100058)

Ilyas, A. O., Alam, M. K., Musah, J.-D., Yang, M., Lam, Y. W., Roy, V. A. L. and Lau, C. (2021) Investigation on the direct and bystander effects in HeLa cells exposed to very low α-radiation using electrical impedance measurement. ACS Omega, 6(22), pp. 13995-14003. (doi: 10.1021/acsomega.0c05888) (PMID:34124424) (PMCID:PMC8190804)

Venkatesh, S., Yeung, C.-C., Li, T., Lau, S. C., Sun, Q.-J., Li, L.-Y., Li, J. H., Lam, M. H.W. and Roy, V. A. L. (2021) Portable molecularly imprinted polymer-based platform for detection of histamine in aqueous solutions. Journal of Hazardous Materials, 310, 124609. (doi: 10.1016/j.jhazmat.2020.124609) (PMID:33257120)

Musah, J.-D., Ilyas, A.M., Novitskii, A., Serhiienko, I., Egbo, K. O., Saianand, G., Khovaylo, V., Kwofie, S., Yu, K. M. and Roy, V. A.L. (2021) Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric material. Journal of Alloys and Compounds, 857, 157599. (doi: 10.1016/j.jallcom.2020.157559)

Musah, J.-D., Chen, G., Novitski, A., Serhiienko, I., Ayotunde E., A., Khovaylo, V., Wu, C.-M. L., Zapien, J. A. and Vellaisamy, R. A.L. (2021) Ultra-low thermal conductivity in dual doped n-type Bi2Te3 material for enhanced thermoelectric properties. Advanced Electronic Materials, 7(2), 2000910. (doi: 10.1002/aelm.202000910)

Sun, Q.-J., Lei, Y., Zhao, X.-H., Han, J., Cao, R., Wu, W., Heidari, H. , Li, W.-J., Sun, Q. and Roy, V. A.L. (2021) Scalable fabrication of hierarchically structured graphite/polydimethylsiloxane composite films for large-area triboelectric nanogenerators and self-powered tactile sensing. Nano Energy, 80, 105521. (doi: 10.1016/j.nanoen.2020.105521)

Sabzehmeidani, M. M., Mahnaee, S., Ghaedi, M., Heidari, H. and Roy, V. A.L. (2021) Carbon based materials: a review of adsorbents for inorganic and organic compounds. Materials Advances, 2(2), pp. 598-627. (doi: 10.1039/D0MA00087F)

Lin Oo, S., Venkatesh, S., Karthikeyan, V., Arava, C. M., Pathikonda, S., Yu, P. K. N., Lau, T. C. K., Chen, X. and Roy, V. A.L. (2021) Highly sensitive and cost-effective portable sensor for early gastric carcinoma diagnosis. Sensors, 21(8), 2639. (doi: 10.3390/s21082639)

Zuo, G. et al. (2020) A β-cyclodextrin modified graphitic carbon nitride with Au co-catalyst for efficient photocatalytic hydrogen peroxide production. Nanomaterials, 10(10), 1969. (doi: 10.3390/nano10101969)

Saianand, G., Gopalan, A.-I., Vellaisamy, R. A.L. , Wilson, G. J., Jakmunee, J., Sonar, P., Lin, L., Kim, S.-W. and Kang, S.-W. (2020) Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells. Materials Letters, 277, 128393. (doi: 10.1016/j.matlet.2020.128393)

Zhao, J., Ghannam, R. , Htet, K. O., Liu, Y., Law, M.-k., Roy, V. A.L. , Imran, M. A. , Michel, B. and Heidari, H. (2020) Self-powered implantable medical devices: photovoltaic energy harvesting review. Advanced Healthcare Materials, 9(17), 2000779. (doi: 10.1002/adhm.202000779) (PMID:32729228)

Sun, Q.-J., Zhao, X.-H., Yeung, C.-C., Tian, Q., Kong, K.-W., Wu, W., Venkatesh, S., Li, W.-J. and Roy, V. A.L. (2020) Bioinspired, self-powered, and highly sensitive electronic skin for sensing static and dynamic pressures. ACS Applied Materials and Interfaces, 12(33), pp. 37239-37247. (doi: 10.1021/acsami.0c10788) (PMID:32814376)

Kwan, W.S., Nikezic, D., Vellaisamy, R. and Yu, K.N. (2020) Multiple stressor effects of radon and phthalates in children: background information and future research. International Journal of Environmental Research and Public Health, 17(8), 2898. (doi: 10.3390/ijerph17082898)

Karthikeyan, V., Surjadi, J. U., Wong, J. C.K., Kannan, V., Lam, K.-H., Chen, X., Lu, Y. and Roy, V. A.L. (2020) Wearable and flexible thin film thermoelectric module for multi-scale energy harvesting. Journal of Power Sources, 455, 227983. (doi: 10.1016/j.jpowsour.2020.227983)

Wang, Y. et al. (2020) Near-infrared-irradiation-mediated synaptic behavior from tunable charge-trapping dynamics. Advanced Electronic Materials, 6(2), 1900765. (doi: 10.1002/aelm.201900765)

Karthikeyan, V., Arava, C. M., Hlaing, M. Z., Chen, B., Chan, C. H., Lam, K.-H. and Roy, V. A.L. (2020) Dislocation-induced ultra-low lattice thermal conductivity in rare earth doped β-Zn4Sb3. Scripta Materialia, 174, pp. 95-101. (doi: 10.1016/j.scriptamat.2019.08.037)

Ding, G., Yang, B., Zhou, K., Zhang, C., Wang, Y., Yang, J.-Q., Han, S.-T., Zhai, Y., Roy, V. A. L. and Zhou, Y. (2020) Synaptic plasticity and filtering emulated in metal-organic frameworks nanosheets based transistors. Advanced Electronic Materials, 6(1), 1900978. (doi: 10.1002/aelm.201900978)

Oo, S. L., Ilyas, A.-M., Karthikeyan, V., Arava, C. M., Kong, E. Y., Yeung, C.-C., Chen, X., Yu, P. K.N. and Vellaisamy, R. A.L. (2020) Gating a single cell: a label-free and real-time measurement method for cellular progression. Analytical Chemistry, 92(2), pp. 1738-1745. (doi: 10.1021/acs.analchem.9b03136) (PMID:31904934)

Jingqi, H., Tang, K.-M., Cheng, S.-C., Ng, C.-O., Chun, Y.-K., Chan, S.-L., Yiu, S.-M., Tse, M.-K., Roy, V. A.L. and Ko, C.-C. (2020) Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes. Inorganic Chemistry Frontiers, 7, pp. 786-794. (doi: 10.1039/C9QI01278H)

Zhang, S. et al. (2019) Extracellular nanomatrix-induced self-organization of neural stem cells into miniature substantia nigra-like structures with therapeutic effects on Parkinsonian rats. Advanced Science, 6(24), 1901822. (doi: 10.1002/advs.201901822) (PMID:31871862) (PMCID:PMC6918115)

KaniAmuthana, B., Vinotha, S., Vaithinathan, K., Roy, V. A.L. and Thilakan, P. (2019) Influence of nitrogen dopant source on the structural, photoluminescence and electrical properties of ZnO thin films deposited by pulsed spray pyrolysis. Ceramics International, 45(18A), pp. 24324-24330. (doi: 10.1016/j.ceramint.2019.08.147)

Wu, W. et al. (2019) Significantly improved dielectric properties of polylactide nanocomposites via TiO2 decorated carbon nanotubes. Composites Part A: Applied Science and Manufacturing, 127, 105650. (doi: 10.1016/j.compositesa.2019.105650)

Huang, Z., Ouyang, D., Ma, R., Wu, W., Roy, V. A.L. and Choy, W. C. H. (2019) A general method: designing a hypocrystalline hydroxide intermediate to achieve ultrasmall and well-dispersed ternary metal oxide for efficient photovoltaic devices. Advanced Functional Materials, 29(45), 1904684. (doi: 10.1002/adfm.201904684)

Parse, H. B., Patil, I., Ingavale, S., Manohar, C., Roy, V.A.L. and Kakade, B. (2019) Efficient oxygen electroreduction kinetics by titanium carbide@nitrogen doped carbon nanocomposite. International Journal of Hydrogen Energy, 44(42), pp. 23649-23657. (doi: 10.1016/j.ijhydene.2019.07.065)

Xu, B., Saianand, G., Roy, V.A.L. , Qiao, Q., Reza, K. M. and Kang, S.-W. (2019) Employing PCBTDPP as an efficient donor polymer for high performance ternary polymer solar cells. Polymers, 11(9), 1423. (doi: 10.3390/polym11091423) (PMID:31470690) (PMCID:PMC6780059)

Cheng, X., Md, A., Lian, H., Zhong, Z., Guo, H., Dong, Q. and Roy, V.A.L. (2019) Study on synthesis, characterization, and nonvolatile memory behavior of ferrocene-containing metallopolymers. Journal of Organometallic Chemistry, 892, pp. 34-40. (doi: 10.1016/j.jorganchem.2019.04.025)

Lv, Z., Chen, M., Qian, F., Roy, V. A.L. , Ye, W., She, D., Wang, Y., Xu, Z.-X., Zhou, Y. and Han, S.-T. (2019) Mimicking neuroplasticity in a hybrid biopolymer transistor by dual modes modulation. Advanced Functional Materials, 29(31), 1902374. (doi: 10.1002/adfm.201902374)

Zuo, G. et al. (2019) Efficient photocatalytic hydrogen peroxide production over TiO2 passivated by SnO2. Catalysts, 9(7), 623. (doi: 10.3390/catal9070623)

Liu, T., Wu, W., Liao, K.-N., Sun, Q., Gong, X., Roy, V. A.L. , Yu, Z.-Z. and Li, R. K.Y. (2019) Fabrication of carboxymethyl cellulose and graphene oxide bio-nanocomposites for flexible nonvolatile resistive switching memory devices. Carbohydrate Polymers, 214, pp. 213-220. (doi: 10.1016/j.carbpol.2019.03.040)

Sun, Q.-J., Li, T., Wu, W., Venkatesh, S., Zhao, X.-H., Xu, Z.-X. and Roy, V. A. L. (2019) Printed high-k dielectric for flexible low-power extended gate field-effect transistor in sensing pressure. ACS Applied Electronic Materials, 1(5), pp. 711-717. (doi: 10.1021/acsaelm.9b00081)

Manoj Kumar, N., Venkatramanan, K. and Vellaisamy, A. L. R. (2019) A statistical method for determining optical and geometrical characteristics of cirrus clouds. Climate, 7(5), 72. (doi: 10.3390/cli7050072)

Sun, Q.-J., Zhao, X.-H., Zhou, Y., Yeung, C.-C., Wu, W., Venkatesh, S., Xu, Z.-X., Wylie, J. J., Li, W.-J. and Roy, V. A.L. (2019) Fingertip‐skin‐inspired highly sensitive and multifunctional sensor with hierarchically structured conductive graphite/polydimethylsiloxane foams. Advanced Functional Materials, 29(18), 1808829. (doi: 10.1002/adfm.201808829)

Wu, W., Liu, T., Deng, X., Sun, Q., Cao, X., Feng, Y., Wang, B., Roy, V. A.L. and Li, R. K.Y. (2019) Ecofriendly UV-protective films based on poly (propylene carbonate) biocomposites filled with TiO2 decorated lignin. International Journal of Biological Macromolecules, 126, pp. 1030-1036. (doi: 10.1016/j.ijbiomac.2018.12.273) (PMID:30611805)

Zuo, G. et al. (2019) Finely dispersed Au nanoparticles on graphitic carbon nitride as highly active photocatalyst for hydrogen peroxide production. Catalysis Communications, 123, pp. 69-72. (doi: 10.1016/j.catcom.2019.02.011)

Ye, F., Zeng, J.-J., Qiu, Y.-B., Cai, X.-M., Wang, B., Wang, H., Zhang, D.-P., Fan, P. and Roy, V.A.L. (2019) Deposition-rate controlled nitrogen-doping into cuprous oxide and its thermal stability. Thin Solid Films, 674, pp. 44-51. (doi: 10.1016/j.tsf.2019.02.005)

Cai, X.-M., Wang, B., Ye, F., Vaithinathan, K., Zeng, J.-J., Zhang, D.-P., Fan, P. and Roy, V.A.L. (2019) Tuning the photoluminescence, conduction mechanism and scattering mechanism of ZnSnN2. Journal of Alloys and Compounds, 779, pp. 237-243. (doi: 10.1016/j.jallcom.2018.11.239)

Chen, X. et al. (2019) Controlled nonvolatile transition in polyoxometalates-graphene oxide hybrid memristive devices. Advanced Materials Technologies, 4(3), 1800551. (doi: 10.1002/admt.201800551)

Zhang, S.-R., Zhou, L., Mao, J.-Y., Ren, Y., Yang, J.-Q., Yang, G.-H., Zhu, X., Han, S.-T., Roy, V. A.L. and Zhou, Y. (2019) Artificial synapse emulated by charge tapping-based resistive switching device. Advanced Materials Technologies, 4(2), 1800342. (doi: 10.1002/admt.201800342)

Cai, X.-M. et al. (2018) Fabricating ZnSnN2 with cosputtering. Surface and Coatings Technology, 359, pp. 169-174. (doi: 10.1016/j.surfcoat.2018.12.080)

Zhang, N. et al. (2018) Serpentine Ni3Ge2O5(OH)4 nanosheets with tailored layers and size for efficient oxygen evolution reactions. Small, 14(48), 1803015. (doi: 10.1002/smll.201803015) (PMID:30328265)

Wua, W., He, H., Liu, T., Wei, R., Cao, X., Sun, Q., Venkatesh, S., Yuen, R. K.K., Roy, V. A.L. and Li, R. K.Y. (2018) Synergetic enhancement on flame retardancy by melamine phosphate modified lignin in rice husk ash filled P34HB biocomposites. Composites Science and Technology, 168, pp. 246-254. (doi: 10.1016/j.compscitech.2018.09.024)

Tuwahatu, C.A., Yeung, C.C., Lam, Y.W. and Roy, V.A.L. (2018) The molecularly imprinted polymer essentials: curation of anticancer, ophthalmic, and projected gene therapy drug delivery systems. Journal of Controlled Release, 287, pp. 24-34. (doi: 10.1016/j.jconrel.2018.08.023) (PMID:30110614)

Lv, Z. et al. (2018) Phototunable biomemory based on light-mediated charge trap. Advanced Science, 5(9), 1800714. (doi: 10.1002/advs.201800714) (PMCID:PMC6145397)

Wu, W., Han, S.-T., Venkatesh, S., Sun, Q., Peng, H., Zhou, Y., Yeung, C., Li, R.K.Y. and Roy, V.A.L. (2018) Biodegradable skin-inspired nonvolatile resistive switching memory based on gold nanoparticles embedded alkali lignin. Organic Electronics, 59, pp. 382-388. (doi: 10.1016/j.orgel.2018.05.051)

Wang, Y. et al. (2018) Synergies of electrochemical metallization and valance change in all-inorganic perovskite quantum dots for resistive switching. Advanced Materials, 30(28), 1800327. (doi: 10.1002/adma.201800327) (PMID:29782667)

Zhou, L. et al. (2018) Biological spiking synapse constructed from solution processed bimetal core–shell nanoparticle based composites. Small, 14(28), 1800288. (doi: 10.1002/smll.201800288) (PMID:29806246)

Zhai, Y., Yang, J.-Q., Zhou, Y., Mao, J.-Y., Ren, Y., Roy, V. A. L. and Han, S.-T. (2018) Toward non-volatile photonic memory: concept, material and design. Materials Horizons, 5(4), pp. 641-654. (doi: 10.1039/C8MH00110C)

Venkatesh, S. et al. (2018) Dual-gated transistor platform for on-site detection of lead ions at trace levels. Analytical Chemistry, 90(12), pp. 7399-7405. (doi: 10.1021/acs.analchem.8b00841) (PMID:29812910)

Wu, W., Liu, T., He, H., Wu, X., Cao, X., JIn, J., Sun, Q., Roy, V. A.L. and Li, R. K.Y. (2018) Rhelogical and antibacterial performance of sodium alginate/zinc oxide composite coating for cellulosic paper. Colloids and Surfaces B: Biointerfaces, 167, pp. 538-543. (doi: 10.1016/j.colsurfb.2018.04.058) (PMID:29730575)

Lv, Z., Zhou, Y., Han, S.-T. and Roy, V.A.L. (2018) From biomaterial-based data storage to bio-inspired artificial synapse. Materials Today, 21(5), pp. 537-552. (doi: 10.1016/j.mattod.2017.12.001)

Huang, Z., Cheng, J., Ren, X., Zhuang, J., Roy, V. A.L. , Burkhartsmeyer, J. M., Wong, K. S. and Choy, W. C.H. (2018) All-room-temperature solution-processed new nanocomposites based hole transport layer from synthesis to film formation for high-performance organic solar cells towards ultimate energy-efficient fabrication. Nano Energy, 47, pp. 26-34. (doi: 10.1016/j.nanoen.2018.02.019)

Venkatesh, S., Yeung, C.-C., Sun, Q.-J., Zhuang, J., Li, T., Li, R. K.Y. and Roy, V. A.L. (2018) Selective and sensitive onsite detection of phthalates in common solvents. Sensors and Actuators B: Chemical, 259, pp. 650-657. (doi: 10.1016/j.snb.2017.12.107)

Wang, Y., Shan, H., Sun, X., Dong, L., Feng, Y., Hu, Q., Ye, W., Roy, V.A.L. , Xu, J. and Xu, Z.-X. (2018) Fabrication of octamethyl substituted zinc(II) phthalocyanine nanostructure via exfoliation and use for solution-processed field-effect transistor. Organic Electronics, 55, pp. 15-20. (doi: 10.1016/j.orgel.2018.01.004)

Zhou, L., Mao, J., Ren, Y., Han, S.-T., Roy, V. A.L. and Zhou, Y. (2018) Recent advances of flexible data storage devices based on organic nanoscaled materials. Small, 14(10), 1703126. (doi: 10.1002/smll.201703126) (PMID:29377568)

Liu, W., Sun, M., Yu, L., Song, X., Li, F., Lee, C.-S. and Roy, V.A.L. (2018) Single-component oligomer nanoparticle-based size-dependent dual-emission modulation. Journal of Physical Chemistry C, 122(8), pp. 4199-4205. (doi: 10.1021/acs.jpcc.7b12272)

Peng, H. et al. (2018) Interface engineering via photopolymerization-induced phase separation for flexible UV-responsive phototransistors. ACS Applied Materials and Interfaces, 10(8), pp. 7487-7496. (doi: 10.1021/acsami.7b19371) (PMID:29411961)

Wang, Y., Lv, Z., Chen, X., Zhou, Y., Roy, V.A.L. and Han, S.-T. (2018) Emerging perovskite materials for high density data storage and artificial synapses. Journal of Materials Chemistry C, 6(7), pp. 1600-1617. (doi: 10.1039/C7TC05326F)

Liang, B., Chen, Y., He, J., Chen, C., Liu, W., He, Y., Liu, X., Zhang, N. and Roy, V.A.L. (2018) Controllable fabrication and tuned electrochemical performance of potassium co–ni phosphate microplates as electrodes in supercapacitors. ACS Applied Materials and Interfaces, 10(4), pp. 3506-3514. (doi: 10.1021/acsami.7b14552) (PMID:29309122)

Sun, Q.-J. et al. (2018) Highly sensitive and ultrastable skin sensors for biopressure and bioforce measurements based on hierarchical microstructures. ACS Applied Materials and Interfaces, 10(4), pp. 4086-4094. (doi: 10.1021/acsami.7b16611) (PMID:29345473)

Chen, X., Zhou, Y., Roy, V. A.L. and Han, S.-T. (2018) Evolutionary metal oxide clusters for novel applications: toward high‐density data storage in nonvolatile memories. Advanced Materials, 30(3), 1703950. (doi: 10.1002/adma.201703950) (PMID:29058796)

Liu, L., Lu, Q., Yang, S., Guo, J., Tian, Q., Yao, W., Guo, Z., Roy, V. A. L. and Wu, W. (2018) All-printed solid-state microsupercapacitors derived from self-template synthesis of Ag@PPy nanocomposites. Advanced Materials Technologies, 3(1), 1700206. (doi: 10.1002/admt.201700206)

Kandasamy, B., Ramar, G., Zhou, L., Han, S.-T., Venkatesh, S., Cheng, S.-C., Xu, Z., Ko, C.-C. and Roy, V.A.L. (2018) Polypyridyl chromium(III) complexes for non-volatile memory application: impact of the coordination sphere on memory device performance. Journal of Materials Chemistry C: Materials for Optical and Electronic Devices, 6(6), pp. 1445-1450. (doi: 10.1039/c7tc04986b)

Feng, Y., Xu, J., Shan, H., Dong, L., Sun, X., Hu, Q., Wang, Y., Roy, V.A.L. and Xu, Z.-X. (2017) Organometal halide perovskite as hole injection enhancer in organic light-emitting diode. Organic Electronics, 51, pp. 257-263. (doi: 10.1016/j.orgel.2017.09.027)

Lau, C. T.-S., Chan, C., Zhang, K. Y., Roy, V. A.L. and Lo, K. K.-W. (2017) Photophysical, cellular-uptake, and bioimagings studies of luminescent ruthenium(II)–polypyridine complexes containing a d-fructose pendant. European Journal of Inorganic Chemistry, 2017(44), pp. 5288-5294. (doi: 10.1002/ejic.201701038)

Peng, H., Yu, L., Chen, G., Bohl, T. W., Ye, Y., Zhou, X., Xue, Z., Roy, V.A.L. and Xie, X. (2017) Low-voltage-driven and highly-diffractive holographic polymer dispersed liquid crystals with spherical morphology. RSC Advances, 7(82), pp. 51847-51857. (doi: 10.1039/c7ra08949j)

Valsange, N. G. et al. (2017) A new pyrene cored small organic molecule with a flexible alkyl spacer: a potential solution processable blue emitter with bright photoluminescence. New Journal of Chemistry, 41(19), pp. 11383-11390. (doi: 10.1039/c7nj01921a)

Yan, L., Zhou, M., Zhang, X., Huang, L., Chen, W., Roy, V. A.L. , Zhang, W. and Chen, X. (2017) A novel type of aqueous dispersible ultrathin-layered double hydroxide nanosheets for in vivo bioimaging and drug delivery. ACS Applied Materials and Interfaces, 9(39), pp. 34185-34193. (doi: 10.1021/acsami.7b05294) (PMID:28915005)

Yan, L. et al. (2017) Size controllable and surface tunable zeolitic imidazolate framework-8–poly(acrylic acid sodium salt) nanocomposites for pH responsive drug release and enhanced in vivo cancer treatment. ACS Applied Materials and Interfaces, 9(38), pp. 32990-33000. (doi: 10.1021/acsami.7b10064) (PMID:28876048)

Zhou, L., Han, S.-T., Shu, S., Zhuang, J., Yan,, Y., Sun, Q.-J., Zhou, Y. and Roy, V. A. L. (2017) Localized surface plasmon resonance-mediated charge trapping/ detrapping for core-shell nanorod-based optical memory cells. ACS Applied Materials and Interfaces, 9(39), pp. 34101-34110. (doi: 10.1021/acsami.7b07486) (PMID:28891295)

Han, S.-T., Peng, H., Sun, Q., Venkatesh, S., Chung, K.-S., Lau, S. C., Zhou, Y. and Roy, V.A.L. (2017) An overview of the development of flexible sensors. Advanced Materials, 29(33), 1700375. (doi: 10.1002/adma.201700375) (PMID:28671711)

Zhou, Y., Zhou, L., Yan, Y., Han, S.-T., Zhuang, J., Sun, Q.-J. and Roy, V.A.L. (2017) Real-time storage of thermal signals in organic memory with floating core-shell nanoparticles. Journal of Materials Chemistry C: Materials for Optical and Electronic Devices, 5(33), pp. 8415-8423. (doi: 10.1039/c7tc01762f)

Ye, F. et al. (2017) Doping cuprous oxide with fluorine and its band gap narrowing. Journal of Alloys and Compounds, 721, pp. 64-69. (doi: 10.1016/j.jallcom.2017.05.272)

Cheng, J., Ren, X., Zhu, H. L., Mao, J., Liang, C., Zhuang, J., Roy, V. A.L. and Choy, W. C.H. (2017) Pre- and post-treatments free nanocomposite based hole transport layer for high performance organic solar cells with considerably enhanced reproducibility. Nano Energy, 34, pp. 76-85. (doi: 10.1016/j.nanoen.2017.02.021)

Cai, X.-M., Su, X.-Q., Ye, F., Roy, V.A.L. , Zhang, D.-P., Luo, J.-T., Fan, P., Zheng, Z.-H., Liang, G.-X. and Xiao, J.-J. (2017) Fabrication and properties of pure-phase Cu2O co-doped with zinc and indium. Journal of Alloys and Compounds, 697, pp. 5-10. (doi: 10.1016/j.jallcom.2016.12.081)

Wu, W., Wu, C., Peng, H., Sun, Q., Zhou, L., Zhuang, J., Cao, X., Roy, V.A.L. and Li, R. K.Y. (2017) Effect of nitrogen-doped graphene on morphology and properties of immiscible poly(butylene succinate)/polylactide blends. Composites Part B: Engineering, 113, pp. 300-307. (doi: 10.1016/j.compositesb.2017.01.037)

Fu, P., Wang, Z., Lin, Z., Liu, Y. and Roy, V. A.L. (2017) The microwave dielectric properties of transparent ZnAl2O4 ceramics fabricated by spark plasma sintering. Journal of Materials Science: Materials in Electronics, 28(13), pp. 9589-9595. (doi: 10.1007/s10854-017-6707-y)

Mao, J., Sha, W. E. I., Zhang,, H., Ren, X., Zhuang, J., Roy, V. A. L. , Wong, K. S. and Choy, W. C. H. (2017) Novel direct nanopatterning approach to fabricate periodically nanostructured perovskite for optoelectronic applications. Advanced Functional Materials, 27(10), 1606525. (doi: 10.1002/adfm.201606525)

Chen, G., Ni, M., Peng, H., Huang, F., Liao, Y., Wang, M., Zhu, J., Roy, V.A.L. and Xie, X. (2017) Photoinitiation and inhibition under monochromatic green light for storage of colored 3D images in holographic polymer-Ddspersed liquid crystals. ACS Applied Materials and Interfaces, 9(2), pp. 1810-1819. (doi: 10.1021/acsami.6b13129) (PMID:28001037)

Liang, B., Zhang, N., Chen, C., Liu, X., Ma, R., Tong, S., Mei, Z., Roy, V. A.L. , Wang, H. and Tang, Y. (2017) Hierarchical yolk-shell layered potassium niobate for tuned pH-dependent photocatalytic H2 evolution. Catalysis Science and Technology, 7(4), pp. 1000-1005. (doi: 10.1039/c6cy02640k)

Wu, W., Jiang, C.Z. and Roy, V.A.L. (2016) Designed synthesis and surface engineering strategies of magnetic iron oxide nanoparticles for biomedical applications. Nanoscale, 8(47), pp. 19421-19474. (doi: 10.1039/c6nr07542h) (PMID:27812592)

Zhuang, J. et al. (2016) Solution-processed rare-earth oxide thin films for alternative gate dielectric application. ACS Applied Materials and Interfaces, 8(45), pp. 31128-31135. (doi: 10.1021/acsami.6b09670) (PMID:27762140)

Nasiri, N., Bo, R., Hung, T. F., Roy, V. A.L. , Fu, L. and Tricoli, A. (2016) Tunable band-selective UV-photodetectors by 3D self-sssembly of heterogeneous nanoparticle networks. Advanced Functional Materials, 26(40), pp. 7359-7366. (doi: 10.1002/adfm.201602195)

Chen, C., Zhang, N., Liu, X., He, Y., Wan, H., Liang, B., Ma, R., Pan, A. and Roy, V. A.L. (2016) Polypyrrole-modified NH4NiPO4·H2O nanoplate arrays on Ni foam for efficient electrode in electrochemical capacitors. ACS Sustainable Chemistry and Engineering, 4(10), pp. 5578-5584. (doi: 10.1021/acssuschemeng.6b01347)

Sun, Q.-J., Zhuang, J., Yan, Y., Zhou, L., Zhou,, Y., Han, S.-T., Wu, W., Peng, H.-Y., Li, R. K. Y. and Roy, V. A. L. (2016) Polymer-modified solution-processed metal oxide dielectrics on aluminum foil substrate for flexible organic transistors. Physica Status Solidi A: Applications and Materials Science, 213(9), pp. 2509-2517. (doi: 10.1002/pssa.201600067)

Xu, J., Wang, Y., Shan, H., Lin, Y., Chen, Q., Roy, V. A. L. and Xu, Z. (2016) Ultrasound-induced organogel formation followed by thin film fabrication via simple doctor blading technique for field-effect transistor applications. ACS Applied Materials and Interfaces, 8(29), pp. 18991-18997. (doi: 10.1021/acsami.6b04817) (PMID:27377991)

Xu, J., Wang, Y., Chen, Q., Lin, Y., Shan, H., Roy, V.A.L. and Xu, Z. (2016) Enhanced lifetime of organic light-emitting diodes using soluble tetraalkyl-substituted copper phthalocyanines as anode buffer layers. Journal of Materials Chemistry C, 4(31), pp. 7377-7382. (doi: 10.1039/c6tc01864e)

Cui, S., Dai, Z., Tian, Q., Liu, J., Xiao, X., Jiang, C., Wu, W. and Roy, V. A.L. (2016) Wetting properties and SERS applications of ZnO/Ag nanowire arrays patterned by a screen printing method. Journal of Materials Chemistry C, 4(26), pp. 6371-6379. (doi: 10.1039/c6tc00714g)

Xu, J.-J., Yang, X.-B., Feng, H., Wang, Y.-L., Shan, H.-Q., Xu, Z.-X., Ng, C.-O., Huang, L.-B., Ko, C.-C. and Roy, V. A. L. (2016) Self-assembled nanostructures of linear arylacetylenes and their aza-substituted analogues. AIP Advances, 6(6), 065210. (doi: 10.1063/1.4954036)

Zhang, N. et al. (2016) Monoclinic tungsten oxide with {100} facet orientation and tuned electronic band structure for enhanced photocatalytic oxidations. ACS Applied Materials and Interfaces, 8(16), pp. 10367-10374. (doi: 10.1021/acsami.6b02275) (PMID:27045790)

Salunke, J. K. et al. (2016) Phenothiazine and carbazole substituted pyrene based electroluminescent organic semiconductors for OLED devices. Journal of Materials Chemistry C, 4(5), pp. 1009-1018. (doi: 10.1039/c5tc03690a)

Du, X., Chiu, S. H.-M., Ong, D. H.-C., Vellaisamy, R. and Lam, M. H.-W. (2016) Metal ion-responsive photonic colloidal crystalline micro-beads with electrochemically tunable photonic diffraction colours. Sensors and Actuators B: Chemical, 223, pp. 318-323. (doi: 10.1016/j.snb.2015.09.116)

Han, S.-T., Zhou, Y., Chen, B., Wang, C., Zhou, L., Yan, Y., Zhuang, J., Sun, Q., Zhang, H. and Roy, V. A.L. (2016) Hybrid flexible resistive random access memory-gated transistor for novel nonvolatile data storage. Small, 12(3), pp. 390-396. (doi: 10.1002/smll.201502243) (PMID:26578160)

Sun, Q.-J., Zhuang, J., Yan, Y., Zhou, Y., Han, S.-T., Zhou, L. and Roy, V. A.L. (2016) Investigation on the mobility and stability in organic thin film transistors consisting of bilayer gate dielectrics. Physica Status Solidi A: Applications and Materials Science, 213(1), pp. 79-84. (doi: 10.1002/pssa.201532380)

Ren, J., Zhang, Y., Liu, F., Yan, Y., Qiu, M., Roy, V.A.L. , Zheng, H., Sun, M. and Yang, R. (2016) (E)-1,2-Di(thiophen-2-yl)ethene based high mobility polymer for efficient photovoltaic devices without any post treatment. RSC Advances, 6(72), pp. 68049-68057. (doi: 10.1039/c6ra13970a)

Zhou, L., Han, S.-T., Zhuang, J., Yan, Y., Zhou, Y., Sun, Q.-J., Xu, Z.-X. and Roy, V.A.L. (2015) Mobility enhancement of P3HT-based OTFTs upon blending with Au nanorods. Particle and Particle Systems Characterization, 32(12), pp. 1051-1057. (doi: 10.1002/ppsc.201500168)

Yan, Y., Huang, L.-B., Zhou, Y., Han, S.-T., Zhou, L., Sun, Q., Zhuang, J., Peng, H., Yan, H. and Roy, V.A.L. (2015) Surface decoration on polymeric gate dielectrics for flexible organic field-effect transistors via hydroxylation and subsequent monolayer self-assembly. ACS Applied Materials and Interfaces, 7(42), pp. 23464-23471. (doi: 10.1021/acsami.5b05363) (PMID:26439239)

Yan, Y., Huang, L.-B., Zhou, Y., Han, S.-T., Zhou, L., Zhuang, J., Xu, Z.-X. and Roy, V.A.L. (2015) Self-aligned, full solution process polymer field-effect transistor on flexible substrates. Scientific Reports, 5, 15770. (doi: 10.1038/srep15770) (PMID:26497412) (PMCID:PMC4620563)

Zhuang, J. et al. (2015) Photo-reactive charge trapping memory based on lanthanide complex. Scientific Reports, 5, 14998. (doi: 10.1038/srep14998) (PMID:26449199) (PMCID:PMC4598868)

Poon, N. H., Yan, Y., Zhou, L., Wang, D., Chan, C.-H. and Roy, V. A.L. (2015) Frequency selective surfaces with nanoparticles unit cell. Micromachines, 6(10), pp. 1421-1426. (doi: 10.3390/mi6101421)

Han, S.-T., Zhou, Y., Chen, B., Zhou, L., Yan, Y., Zhang, H. and Roy, V.A.L. (2015) Two-dimensional molybdenum disulphide nanosheet-covered metal nanoparticle array as a floating gate in multi-functional flash memories. Nanoscale, 7(41), pp. 17496-17503. (doi: 10.1039/c5nr05054e) (PMID:26445097)

Wu, W., Liu, L., Dai, Z., Liu, J., Yang, S., Zhou, L., Xiao, X., Jiang, C. and Roy, V. A. L. (2015) Erratum: Low-cost, disposable, flexible and highly reproducible screen printed SERS substrates for the detection of various chemicals. Scientific Reports, 5, 12205. (doi: 10.1038/srep12205) (PMID:26192753) (PMCID:PMC4507397)

Zhou, Y., Han, S.-T., Yan, Y., Zhou, L., Huang, L.-B., Zhuang, J., Sonar, P. and Roy, V.A.L. (2015) Ultra-flexible nonvolatile memory based on donor-acceptor diketopyrrolopyrrole polymer blends. Scientific Reports, 5, 10683. (doi: 10.1038/srep10683) (PMID:26029856) (PMCID:PMC4450595)

Wu, W., Liu, L., Dai, Z., Liu, J., Yang, S., Zhou, L., Xiao, X., Jiang, C. and Roy, V. A. L. (2015) Low-cost, disposable, flexible and highly reproducible screen printed SERS substrates for the detection of various chemicals. Scientific Reports, 5, 10208. (doi: 10.1038/srep10208) (PMID:25974125) (PMCID:PMC4431467)

Han, S.-T., Zhou, Y., Zhou, L., Yan, Y., Huang, L.-B., Wu, W. and Roy, V.A.L. (2015) CdSe/ZnS core-shell quantum dots charge trapping layer for flexible photonic memory. Journal of Materials Chemistry C, 3(13), pp. 3173-3180. (doi: 10.1039/c4tc01901f)

Zhou, Y., Han, S.-T., Sonar, P., Ma, X., Chen, J., Zheng, Z. and Roy, V.A.L. (2015) Reversible conversion of dominant polarity in ambipolar polymer/graphene oxide hybrids. Scientific Reports, 5, 9446. (doi: 10.1038/srep09446) (PMID:25801827) (PMCID:PMC4371103)

Wong, K., Chen, C., Wei, K., Roy, V.A.L. and Chathoth, S.M. (2015) Diffusion of gold nanoparticles in toluene and water as seen by dynamic light scattering. Journal of Nanoparticle Research, 17(3), 153. (doi: 10.1007/s11051-015-2965-x)

Wu, W., Lei, M., Yang, S., Zhou, L., Liu, L., Xiao, X., Jiang, C. and Roy, V.A.L. (2015) A one-pot route to the synthesis of alloyed Cu/Ag bimetallic nanoparticles with different mass ratios for catalytic reduction of 4-nitrophenol. Journal of Materials Chemistry A, 3(7), pp. 3450-3455. (doi: 10.1039/c4ta06567k)

Zhou, L., Yang, J., Zhou, Y., Han, S.-T., Huang, L., Yan, Y. and Roy, V.A.L. (2015) Dual plasmonic-enhanced bulk-heterojunction solar cell incorporating gold nanoparticles into solution-processed anode buffer layer and active layer. Physica Status Solidi - Rapid Research Letters, 9(2), pp. 115-119. (doi: 10.1002/pssr.201409401)

Han, S.-T., Zhou, Y., Sonar, P., Wei, H., Zhou, L., Yan, Y., Lee, C.-S. and Roy, V.A.L. (2015) Surface engineering of reduced graphene oxide for controllable ambipolar flash memories. ACS Applied Materials and Interfaces, 7(3), pp. 1699-1708. (doi: 10.1021/am5072833) (PMID:25537669)

Wu, W., Jiang, C. and Roy, V.A.L. (2015) Recent progress in magnetic iron oxide-semiconductor composite nanomaterials as promising photocatalysts. Nanoscale, 7(1), pp. 38-58. (doi: 10.1039/c4nr04244a) (PMID:25406760)

Cai, X.-M. et al. (2015) The n-type conduction of indium-doped Cu2O thin films fabricated by direct current magnetron co-sputtering. Applied Physics Letters, 107, 083901. (doi: 10.1063/1.4928527)

Liu, J., Wu, W., Tian, Q., Yang, S., Sun, L., Xiao, X., Ren, F., Jianga, C. and Roy, V. A.L. (2015) Tube-like α-Fe2O3@Ag/AgCl heterostructure: controllable synthesis and enhanced plasmonic photocatalytic activity. RSC Advances, 5(75), pp. 61239-61248. (doi: 10.1039/c5ra10247b)

Peng, H., Chen, G., Ni, M., Yan, Y., Zhuang, J., Roy, V.A.L. , Li, R. K.Y. and Xie, X. (2015) Classical photopolymerization kinetics, exceptional gelation, and improved diffraction efficiency and driving voltage in scaffolding morphological H-PDLCs afforded using a photoinitibitor. Polymer Chemistry, 6(48), pp. 8259-8269. (doi: 10.1039/C5PY01414J)

Wang, Y.-L., Xu, J.-J., Lin, Y.-W., Shan, H.-Q., Yan, Y., Roy, V.A.L. and Xu, Z.-X. (2015) Tetra-methyl substituted copper (II) phthalocyanine as a hole injection enhancer in organic light-emitting diodes. AIP Advances, 5(10), 107205. (doi: 10.1063/1.4932633)

Yan, Y., Zhou, Y., Huang, L.-B., Han, S.-T., Zhou, L., Xu, Z.-X. and Roy, V.A.L. (2015) Enhanced self-assembled monolayer treatment on polymeric gate dielectrics with ultraviolet/ozone assistance in organic thin film transistors. RSC Advances, 5(79), pp. 64471-64477. (doi: 10.1039/c5ra13246k)

Liu, Q., Bao, X., Yan, Y., Du, Z., Roy, V.A.L. , Zhu, D., Sun, M., Lee, C.S. and Yang, R. (2014) Hydrophilic poly-ether side-chained benzodithiophene-based homopolymer for solar cells and field-effect transistors. Journal of Materials Science, 50(5), pp. 2263-2271. (doi: 10.1007/s10853-014-8789-8)

Huang, L.-B., Zhou, Y., Han, S.-T., Yan, Y., Zhou, L., Chen, W., Zhou, P., Chen, X. and Roy, V.A.L. (2014) Controlled assembly of silver nanoparticles monolayer on 3D polymer nanotubes and their applications. Small, 10(22), pp. 4645-4650. (doi: 10.1002/smll.201401352) (PMID:25087595)

Wang, N., Bao, X., Yan, Y., Ouyang, D., Sun, M., Roy, V.A.L. , Lee, C. S. and Yang, R. (2014) Synthesis and photovoltaic properties of conjugated D-A copolymers based on thienyl substituted pyrene and diketopyrrolopyrrole for polymer solar cells. Journal of Polymer Science, Part A: Polymer Chemistry, 52(22), pp. 3198-3204. (doi: 10.1002/pola.27378)

Salunke, J.K., Sonar, P., Wong, F.L., Roy, V.A.L. , Lee, C.S. and Wadgaonkar, P.P. (2014) Pyrene based conjugated materials: Synthesis, characterization and electroluminescent properties. Physical Chemistry Chemical Physics, 16(42), pp. 23320-23328. (doi: 10.1039/c4cp03693j) (PMID:25259763)

Huang, L.-B., Zhou, Y., Han, S.-T., Yan, Y., Zhou, L. and Roy, V.A.L. (2014) The role of a nanoparticle monolayer on the flow of polymer melts in nanochannels. Nanoscale, 6(19), pp. 11013-11018. (doi: 10.1039/c4nr03002h) (PMID:25132623)

Liu, D., Xiao, M., Du, Z., Yan, Y., Han, L., Roy, V.A.L. , Sun, M., Zhu, W., Lee, C.S. and Yang, R. (2014) Solution-processed, indacenodithiophene-based, small-molecule organic field-effect transistors and solar cells. Journal of Materials Chemistry C, 2(36), pp. 7523-7530. (doi: 10.1039/c4tc00721b)

Tian, W., Huang, L., Wang, D. and Roy, V.A.L. (2014) A general, rapid and solvent-free approach to fabricating nanostructured polymer surfaces. Science China Technological Sciences, 57(12), pp. 2328-2333. (doi: 10.1007/s11431-014-5647-5)

Zhou, Y., Han, S.-T., Chen, X., Wang, F., Tang, Y.-B. and Roy, V.A.L. (2014) An upconverted photonic nonvolatile memory. Nature Communications, 5, 4720. (doi: 10.1038/ncomms5720) (PMID:25144762)

Huang, L.-B., Xu, Z.-X., Chen, X., Tian, W., Han, S.-T., Zhou, Y., Xu, J.-J., Yang, X.-B. and Roy, V.A.L. (2014) Poly(3-hexylthiophene) nanotubes with tunable aspect ratios and charge transport properties. ACS Applied Materials and Interfaces, 6(15), pp. 11874-11881. (doi: 10.1021/am5006207) (PMID:25014608)

Tian, Q. et al. (2014) Tube-like ternary α-Fe2O3@SnO 2@Cu2O sandwich heterostructures: Synthesis and enhanced photocatalytic properties. ACS Applied Materials and Interfaces, 6(15), pp. 13088-13097. (doi: 10.1021/am5029439)

Wang, H., Zhou, Y., Roy, V.A.L. , Yan, D., Zhang, J. and Lee, C.-S. (2014) Polymorphism and electronic properties of vanadyl-phthalocyanine films. Organic Electronics, 15(7), pp. 1586-1591. (doi: 10.1016/j.orgel.2014.04.024)

Zhuang, J., Han, S.-T., Zhou, Y. and Roy, V.A.L. (2014) Flash memory based on solution processed hafnium dioxide charge trapping layer. Journal of Materials Chemistry C, 2(21), pp. 4233-4238. (doi: 10.1039/c4tc00010b)

Chen, Y., Yan, Y., Du, Z., Bao, X., Liu, Q., Roy, V.A.L. , Sun, M., Yang, R. and Lee, C. S. (2014) Two-dimensional benzodithiophene and benzothiadiazole based solution-processed small molecular organic field-effect transistors & solar cells. Journal of Materials Chemistry C, 2(20), pp. 3921-3927. (doi: 10.1039/c4tc00086b)

Chu, W.-K., Ko, C.-C., Chan, K.-C., Yiu, S.-M., Wong, F.-L., Lee, C.-S. and Roy, V.A.L. (2014) A simple design for strongly emissive sky-blue phosphorescent neutral rhenium complexes: Synthesis, photophysics, and electroluminescent devices. Chemistry of Materials, 26(8), pp. 2544-2550. (doi: 10.1021/cm4038654)

Ye, F. et al. (2014) The electrical and optical properties of Cu-doped In2O 3 thin films. Thin Solid Films, 556, pp. 44-47. (doi: 10.1016/j.tsf.2014.01.006)

Xu, Z.-X. and Roy, V.A.L. (2014) Charge transport in monolayer poly(3-hexylthiophene) thin-film transistors. Chinese Physics B, 23(4), 048501. (doi: 10.1088/1674-1056/23/4/048501)

Chen, W. et al. (2014) Improved polyvinylpyrrolidone microneedle arrays with non-stoichiometric cyclodextrin. Journal of Materials Chemistry B, 2(12), pp. 1699-1705. (doi: 10.1039/c3tb21698e) (PMID:32261399)

Han, S.-T., Zhou, Y., Yang, Q.D., Zhou, L., Huang, L.-B., Yan, Y., Lee, C.-S. and Roy, V.A.L. (2014) Energy-band engineering for tunable memory characteristics through controlled doping of reduced graphene oxide. ACS Nano, 8(2), pp. 1923-1931. (doi: 10.1021/nn406505t) (PMID:24472000)

Peng, Y.-H., Xu, Z.-X., Li, C.-H., Hu, L., Roy, V.A.L. , Sun, S.-F. and Wang, J. (2014) Synthesis and characterization of a new series of nickel dithiolate compounds containing both acridinium cations and halogen anions. Inorganica Chimica Acta, 410, pp. 88-93. (doi: 10.1016/j.ica.2013.10.020)

Yan, L., Chen, W., Zhu, X., Huang, L., Wang, Z., Zhu, G., Roy, V.A.L. , Yu, K.N. and Chen, X. (2013) Folic acid conjugated self-assembled layered double hydroxide nanoparticles for high-efficacy-targeted drug delivery. Chemical Communications, 49(93), pp. 10938-10940. (doi: 10.1039/c3cc45714a) (PMID:24129414)

Xu, Z.-X. and Roy, V.A.L. (2013) Organic photovoltaic cells with copper (II) tetra-methyl substituted phthalocyanine. Chinese Physics B, 22(12), 128505. (doi: 10.1088/1674-1056/22/12/128505)

Zhou, Y., Han, S.-T., Zhou, L., Yan, Y., Huang, L.-B., Huang, J. and Roy, V.A.L. (2013) Flexible organic/inorganic heterojunction transistors with low operating voltage. Journal of Materials Chemistry C, 1(42), pp. 7073-7080. (doi: 10.1039/c3tc31456a)

Ng, T.-W., Chan, C.-Y., Yang, Q.-D., Wei, H.-X., Lo, M.-F., Roy, V.A.L. , Zhang, W.-J. and Lee, C.-S. (2013) Charge interaction and interfacial electronic structures in a solid-state dye-sensitized solar cell. Organic Electronics, 14(11), pp. 2743-2747. (doi: 10.1016/j.orgel.2013.07.029)

Ye, F., Zhong, X., Cai, X.-M., Huang, L.-B., Roy, V.A.L. , Jing, S.-Y., Zhang, D.-P., Fan, P., Luo, J.-T. and Tian, X.-Q. (2013) Structural, electrical, and optical properties of Zn1-xSn xO thin films deposited by reactive co-sputtering. Physica Status Solidi A: Applications and Materials Science, 210(11), pp. 2404-2408. (doi: 10.1002/pssa.201329266)

Zhou, Y., Han, S.-T., Yan, Y., Huang, L.-B., Zhou, L., Huang, J. and Roy, V.A.L. (2013) Solution processed molecular floating gate for flexible flash memories. Scientific Reports, 3, 3093. (doi: 10.1038/srep03093) (PMID:24172758) (PMCID:PMC3813938)

Han, S.-T., Zhou, Y. and Roy, V.A.L. (2013) Towards the development of flexible non-volatile memories. Advanced Materials, 25(38), pp. 5425-5449. (doi: 10.1002/adma.201301361) (PMID:24038631)

Zhou, Y., Han, S.-T., Sona, P. and Roy, V.A.L. (2013) Nonvolatile multilevel data storage memory device from controlled ambipolar charge trapping mechanism. Scientific Reports, 3, 2319. (doi: 10.1038/srep02319) (PMID:23900459) (PMCID:PMC3728587)

Han, S.-T., Zhou, Y., Yang, Q.-D., Lee, C.-S. and Roy, V.A.L. (2013) Poly(3-hexylthiophene)/gold nanoparticle hybrid system with an enhanced photoresponse for light-controlled electronic devices. Particle and Particle Systems Characterization, 30(7), pp. 599-605. (doi: 10.1002/ppsc.201300005)

Zhou, Y., Han, S.-T., Huang, L.-B., Huang, J., Yan, Y., Zhou, L. and Roy, V.A.L. (2013) A low voltage programmable unipolar inverter with a gold nanoparticle monolayer on plastic. Nanotechnology, 24(20), 205202. (doi: 10.1088/0957-4484/24/20/205202)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2013) The strain and thermal induced tunable charging phenomenon in low power flexible memory arrays with a gold nanoparticle monolayer. Nanoscale, 5(5), pp. 1972-1979. (doi: 10.1039/c2nr32579a)

Zhou, Y., Han, S., Zhou, G., Wong, W.-Y. and Roy, V.A.L. (2013) Ambipolar organic light-emitting electrochemical transistor based on a heteroleptic charged iridium(III) complex. Applied Physics Letters, 102(8), 083301. (doi: 10.1063/1.4792842)

Han, S.-T., Zhou, Y., Wang, C., He, L., Zhang, W. and Roy, V.A.L. (2013) Layer-by-layer-assembled reduced graphene oxide/gold nanoparticle hybrid double-floating-gate structure for low-voltage flexible flash memory. Advanced Materials, 25(6), pp. 872-877. (doi: 10.1002/adma.201203509) (PMID:23125077)

Yang, X.-B. et al. (2013) Importance of alkyl chain-length on the self-assembly of new Ni(qdt) 2 complexes and charge transport properties. RSC Advances, 3(30), pp. 12075-12079. (doi: 10.1039/c3ra41633j)

To, W.-K., Fu, J., Yang, X., Roy, V.A.L. and Huang, Z. (2012) Porosification-reduced optical trapping of silicon nanostructures. Nanoscale, 4(19), pp. 5835-5839. (doi: 10.1039/c2nr31680c)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2012) Low voltage flexible nonvolatile memory with gold nanoparticles embedded in poly(methyl methacrylate). Nanotechnology, 23(34), 344014. (doi: 10.1088/0957-4484/23/34/344014)

Zhou, Y., Han, S.-T., Xu, Z.-X., Yang, X.-B., Ng, H.-P., Huang, L.-B. and Roy, V.A.L. (2012) Functional high-k nanocomposite dielectrics for flexible transistors and inverters with excellent mechanical properties. Journal of Materials Chemistry, 22(28), pp. 14246-14253. (doi: 10.1039/c2jm31813j)

Han, S.-T., Zhou, Y., Xu, Z.-X. and Roy, V.A.L. (2012) Controllable threshold voltage shifts of polymer transistors and inverters by utilizing gold nanoparticles. Applied Physics Letters, 101(3), 033306. (doi: 10.1063/1.4737422)

Han, S.-T., Zhou, Y., Xu, Z.-X., Huang, L.-B., Yang, X.-B. and Roy, V.A.L. (2012) Microcontact printing of ultrahigh density gold nanoparticle monolayer for flexible flash memories. Advanced Materials, 24(26), pp. 3556-3561. (doi: 10.1002/adma.201201195) (PMID:22678769)

Chen, W.-B., Zu, Z.-X., Li, K., Chui, S. S.-Y., Roy, V.A.L. , Lai, P.-T. and Che, C.-M. (2012) Improving the performance of polymer solar cells by adjusting the crystallinity and nanoscale phase separation. Chinese Physics B, 21(7), 078401. (doi: 10.1088/1674-1056/21/7/078401)

Ng, C.K.M., Chong, E.Y.W., Roy, V.A.L. , Cheung, K.M.C., Yeung, K.W.K. and Yu, K.N. (2012) Fabrication of micropillar substrates using replicas of alpha-particle irradiated and chemically etched PADC films. Applied Radiation and Isotopes, 70(7), pp. 1432-1435. (doi: 10.1016/j.apradiso.2011.11.019)

Zhou, L., Xu, Z.-X., Zhou, Y., Feng, Y., Zhou, X.-G., Xiang, H.-F. and Roy, V.A.L. (2012) Structure-charge transport relationship of 5,15-dialkylated porphyrins. Chemical Communications, 48(42), pp. 5139-5141. (doi: 10.1039/c2cc31137b) (PMID:22517491)

Xu, J., Yang, X., Wang, H., Chen, X., Luan, C., Xu, Z., Lu, Z., Roy, V.A.L. , Zhang, W. and Lee, C.-S. (2012) Correction to Arrays of ZnO/ZnxCd1–xSe nanocables: band gap engineering and photovoltaic applications. Nano Letters, 12(4), p. 2177. (doi: 10.1021/nl301181u)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2012) Polymer-nanoparticle hybrid dielectrics for flexible transistors and inverters. Journal of Materials Chemistry, 22(9), pp. 4060-4065. (doi: 10.1039/c2jm15256h)

Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2012) Controlled ambipolar charge transport through a self-assembled gold nanoparticle monolayer. Advanced Materials, 24(9), pp. 1247-1251. (doi: 10.1002/adma.201104375) (PMID:22298461)

Hui, W., Shi, F., Yan, K., Peng, M., Cheng, X., Luo, Y., Chen, X., Roy, V.A.L. , Cui, Y. and Wang, Z. (2012) Fe 3O4/Au/Fe 3O4 nanoflowers exhibiting tunable saturation magnetization and enhanced bioconjugation. Nanoscale, 4(3), pp. 747-751. (doi: 10.1039/c2nr11489e) (PMID:22193883)

Low, K.-H., Xu, Z.-X., Xiang, H.-F., Chui, S. S.-Y., Roy, V.A.L. and Che, C.-M. (2011) Bis(5,7-dimethyl-8-hydroxyquinolinato)platinum(II) complex for efficient organic heterojunction solar cells. Chemistry: An Asian Journal, 6(12), pp. 3223-3229. (doi: 10.1002/asia.201100450) (PMID:21905232)

Han, S.-T., Zhou, Y., Xu, Z.-X., Roy, V.A.L. and Hung, T.F. (2011) Nanoparticle size dependent threshold voltage shifts in organic memory transistors. Journal of Materials Chemistry, 21(38), pp. 14575-14580. (doi: 10.1039/c1jm12113h)

Xu, J., Yang, X., Wang, H., Chen, X., Luan, C., Xu, Z., Lu, Z., Roy, V.A.L. , Zhang, W. and Lee, C.-S. (2011) Arrays of ZnO/ZnxCd1- xse nanocables: Band gap engineering and photovoltaic applications. Nano Letters, 11(10), pp. 4138-4143. (doi: 10.1021/nl201934k) (PMID:21875102)

Xu, Z.-X., Roy, V.A.L. , Low, K.-H. and Che, C.-M. (2011) Bulk heterojunction photovoltaic cells based on tetra-methyl substituted copper(ii) phthalocyanine:P3HT:PCBM composite. Chemical Communications, 47(34), pp. 9654-9656. (doi: 10.1039/c1cc13827h) (PMID:21799988)

Shi, S.L., Xu, S.J., Xu, Z.-X., Roy, V.A.L. and Che, C.-M. (2011) Broadband second harmonic generation from ZnO nano-tetrapods. Chemical Physics Letters, 506(4-6), pp. 226-229. (doi: 10.1016/j.cplett.2011.03.006)

Zhou, Y., Roy, V.A.L. , Xu, Z.-X., Kwong, H.Y., Wang, H.-B. and Lee, C.S. (2011) Low temperature processed bilayer dielectrics for low-voltage flexible saturated load inverters. Applied Physics Letters, 98(9), 092904. (doi: 10.1063/1.3558913)

Che, C.-M., Chow, C.-F., Yuen, M.-Y., Roy, V.A.L. , Lu, W., Chen, Y., Chui, S. S.-Y. and Zhu, N. (2011) Single microcrystals of organoplatinum(II) complexes with high charge-carrier mobility. Chemical Science, 2(2), pp. 216-220. (doi: 10.1039/c0sc00479k)

Low, K.-H., Roy, V.A.L. , Chui, S. S.-Y., Chan, S. L.-F. and Che, C.-M. (2010) Highly conducting two-dimensional copper(i) 4-hydroxythiophenolate network. Chemical Communications, 46(39), pp. 7328-7330. (doi: 10.1039/c0cc02348e) (PMID:20740247)

Xu, Z.-X., Roy, V.A.L. , Liu, Z.-T. and Lee, C.S. (2010) Importance of molecular alignment for organic photovoltaic devices. Applied Physics Letters, 97(16), 163301. (doi: 10.1063/1.3502598)

Low, K.-H., Li, C.-H., Roy, V. A.L. , Chui, S. S.-Y., Lai-Fung Chan, S. and Che, C.-M. (2010) Homoleptic copper(I) phenylselenolate polymer as a single-source precursor for Cu2Se nanocrystals. Structure, photoluminescence and application in field-effect transistor. Chemical Science, 1(4), pp. 515-518. (doi: 10.1039/c0sc00212g)

Lei, K.-L., Chow, C.-F., Tsang, K.-C., Lei, E. N.Y., Roy, V.A.L. , Lam, M. H.W., Lee, C.S., Pun, E.Y.B. and Li, J. (2010) Long aliphatic chain coated rare-earth nanocrystal as polymer-based optical waveguide amplifiers. Journal of Materials Chemistry, 20(35), pp. 7526-7529. (doi: 10.1039/c0jm00706d)

Chui, S. S.-Y., Low, K.-H., Lu, J., Roy, V.A.L. , Chan, S. L.-F. and Che, C.-M. (2010) Homoleptic platinum(II) and palladium(II) organothiolates and phenylselenolates: solvothermal synthesis, structural determination, optical properties, and single-source precursors for PdSe and PdS nanocrystals. Chemistry: An Asian Journal, 5(9), pp. 2062-2074. (doi: 10.1002/asia.201000233) (PMID:20665775)

Chow, C.-F., Roy, V.A.L. , Ye, Z., Lam, M. H.W., Lee, C.S. and Lau, K.C. (2010) Novel high proton conductive material from liquid crystalline 4-(octadecyloxy)phenylsulfonic acid. Journal of Materials Chemistry, 20(30), pp. 6245-6249. (doi: 10.1039/c0jm00523a)

Lo, M.F., Ng, T.W., Liu, T.Z., Roy, V.A.L. , Lai, S.L., Fung, M.K., Lee, C.S. and Lee, S.T. (2010) Limits of open circuit voltage in organic photovoltaic devices. Applied Physics Letters, 96(11), 113303. (doi: 10.1063/1.3360336)

Roy, V.A.L. , Lo, K. K.-W., Chow, C.-F., Chui, S. S.Y. and Lee, C.S. (2010) Alignment of charge-transfer complexes for molecular devices. Journal of Materials Chemistry, 20(3), pp. 434-438. (doi: 10.1039/b913172h)

Cao, Y.L. et al. (2009) Coaxial nanocables of p-type zinc telluride nanowires sheathed with silicon oxide: Synthesis, characterization and properties. Nanotechnology, 20(45), 455702. (doi: 10.1088/0957-4484/20/45/455702)

Lu, W., Chen, Y., Roy, V.A.L. , Chui, S. S.-Y. and Che, C.-M. (2009) Supramolecular polymers and chromonic mesophases self-organized from phosphorescent cationic organoplatinum(II) complexes in water. Angewandte Chemie (International Edition), 48(41), pp. 7621-7625. (doi: 10.1002/anie.200903109) (PMID:19746377)

Xu, Z.-X., Xiang, H.-F., Roy, V.A.L. , Chui, S. S.-Y., Wang, Y., Lai, P.T. and Che, C.-M. (2009) Organic field-effect transistors fabricated with N, N′ -substituted dialkyl-1,3,8,10-tetramethylquinacridone compounds. Applied Physics Letters, 95(12), 123305. (doi: 10.1063/1.3233961)

Liu, Z.T., Lo, M.F., Wang, H.B., Ng, T.W., Roy, V.A.L. , Lee, C.S. and Lee, S.T. (2009) Influence of the donor/acceptor interface on the open-circuit voltage in organic solar cells. Applied Physics Letters, 95(9), 093307. (doi: 10.1063/1.3222975)

Wong, C.-Y., Lai, L.-M., Keybg, S.-L. and Roy, V.A.L. (2009) Trends for the crystallinity, optical and electrical properties of post-thermal annealed ZnO nanorods. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 164(2), pp. 80-84. (doi: 10.1016/j.mseb.2009.07.007)

Han, J., Chang, X.-Y., Zhu, L.-R., Pang, M.-L., Meng, J.-B., Chui, S. S.-Y., Lai, S.-W. and Roy, V.A.L. (2009) Microwave-assisted synthesis, structure, and tunable liquid-crystal properties of 2, 5-diaryl-1, 3, 4-thiadiazole derivatives through peripheral n-alkoxy chains. Chemistry: An Asian Journal, 4(7), pp. 1099-1107. (doi: 10.1002/asia.200800440) (PMID:19492397)

Yuen, M.-Y. et al. (2008) Semiconducting and electroluminescent nanowires self-assembled from organoplatinum(II) complexes. Angewandte Chemie (International Edition), 47(51), pp. 9895-9899. (doi: 10.1002/anie.200802981) (PMID:19006156)

Xu, Z.-X., Xiang, H.-F., Roy, V.A.L. , Chui, S. S.-Y., Che, C.-M. and Lai, P.T. (2008) Field-effect transistor fabricated with nickel(II) etioporphyrin-I micrometer-sized crystals. Applied Physics Letters, 93(22), 223305. (doi: 10.1063/1.3040319)

So, M.-H., Roy, V.A.L. , Xu, Z.-X., Chui, S. S.-Y., Yuen, M.-Y., Ho, C.-M. and Che, C.-M. (2008) Controlled self-assembly of functional metal octaethylporphyrin 1D nanowires by solution-phase precipitative method. Chemistry: An Asian Journal, 3(11), pp. 1968-1978. (doi: 10.1002/asia.200800162) (PMID:18767102)

Wong, C.-Y., Lai, L.-M., Leung, S.-L., Roy, V.A.L. and Pin, E. Y.-B. (2008) Ambipolar charge transport and electroluminescence properties of ZnO nanorods. Applied Physics Letters, 93(2), 023502. (doi: 10.1063/1.2957671)

Che, C.-M., Xiang, H.-F., Chui, S. S.-Y., Xu, Z.-X., Roy, V.A.L. , Yan, J. J., Fu, W.-F., Lai, P.T. and Williams, I. D. (2008) A high-performance organic field-effect transistor based on platinum(II) porphyrin: peripheral substituents on porphyrin ligand significantly affect film structure and charge mobility. Chemistry: An Asian Journal, 3(7), pp. 1092-1103. (doi: 10.1002/asia.200800011) (PMID:18528916)

Stallinga, P., Roy, V.A.L. , Xu, Z.-X., Xiang, H.-F. and Che, C.-M. (2008) Metal-insulator-metal transistors. Advanced Materials, 20(11), pp. 2120-2124. (doi: 10.1002/adma.200702525)

Xiang, H.-F., Xu, Z.-X., Roy, V.A.L. , Yan, B.-P., Chan, S.-C., Che, C.-M. and Lai, P.T. (2008) Deep-red to near-infrared electrophosphorescence based on bis(8-hydroxyquinolato) platinum(II) complexes. Applied Physics Letters, 92(16), 163305. (doi: 10.1063/1.2906892)

Roy, V.A.L. , Wong, E. L.-M., Ko, B. C.-B., Chao, C.-T., Yan, S.-C., Yan, B., Wu, J.-C. and Che, C.-M. (2008) Ambipolar charge transport in DNA molecules. Advanced Materials, 20(7), pp. 1258-1262. (doi: 10.1002/adma.200701179)

Che, C.-M., Li, C.-H., Chui, S. S.-Y., Roy, V.A.L. and Low, K.-H. (2008) Homoleptic copper(I) arylthiolates as a new class of p-type charge carriers: structures and charge mobility studies. Chemistry: A European Journal, 14(10), pp. 2965-2975. (doi: 10.1002/chem.200700723) (PMID:18350558)

Xiang, H.-F. et al. (2008) Star-configured carbazole as an efficient near-ultraviolet emitter and hole-transporting material for organic light-emitting devices. Applied Physics Letters, 92(7), 073305. (doi: 10.1063/1.2841063)

Chen, W.-B., Xiang, H.-F., Xu, Z.-X., Yan, B.-P., Roy, V.A.L. and Che, C.-M. (2007) Improving efficiency of organic photovoltaic cells with pentacene-doped CuPc layer. Applied Physics Letters, 91(19), 191109. (doi: 10.1063/1.2806195)

Yan, B.-P., Cheung, C.C.C., Kui, S.C.F., Xiang, H.-F., Roy, V.A.L. , Xu, S.-J. and Che, C.-M. (2007) Efficient white organic light-emitting devices based on phosphorescent platinum(II)/fluorescent dual-emitting layers. Advanced Materials, 19(21), pp. 3599-3603. (doi: 10.1002/adma.200602683)

Yan, B.-P., Cheung, C. C.C., Kui, S. C.F., Roy, V.A.L. and Che, C.-M. (2007) High-efficiency orange and yellow organic light-emitting devices using platinum(II) complexes containing extended π -conjugated cyclometalated ligands as dopant materials. Applied Physics Letters, 91(6), 063508. (doi: 10.1063/1.2768868)

Xu, Z.-X. and Roy, V.A.L. (2007) Nanocomposite field effect transistors based on zinc oxide/polymer blends. Applied Physics Letters, 90(22), 223509. (doi: 10.1063/1.2740478)

Xiang, H.-F., Xu, Z.-X., Roy, V.A.L. , Che, C.-M. and Lai, P.T. (2007) Method for measurement of the density of thin films of small organic molecules. Review of Scientific Instruments, 78(3), 034104. (doi: 10.1063/1.2712932)

Lu, W., Roy, V.A.L. and Che, C.-M. (2006) Self-assembled nanostructures with tridentate cyclometalated platinum(II) complexes. Chemical Communications, 2006(38), pp. 3972-3974. (doi: 10.1039/b607422g) (PMID:17003869)

Xu, Z.-X., Lin, J.-D., Roy, V.A.L. , Ou, Y. and Liao, D.-W. (2005) Catalytic synthesis of carbon nanotubes and carbon spheres using Kaolin supported catalyst. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 123(2), pp. 102-106. (doi: 10.1016/j.mseb.2005.07.012)

Roy, V.A.L. , Zhi, Y.-G., Xu, Z.-X., Yu, S.-C., Chan, P.W.H. and Che, C.-M. (2005) Functionalized arylacetylene oligomers for organic thin-film transistors (OTFTs). Advanced Materials, 17(10), pp. 1258-1261. (doi: 10.1002/adma.200401998)

Santato, C. et al. (2004) Tetracene-based organic light-emitting transistors: optoelectronic properties and electron injection mechanism. Synthetic Metals, 146(3), pp. 329-334. (doi: 10.1016/j.synthmet.2004.08.028)

Zheng, R.K., Liu, H., Zhang, X.X., Roy, V.A.L. and Djurišić, A.B. (2004) Exchange bias and the origin of magnetism in Mn-doped ZnO tetrapods. Applied Physics Letters, 85(13), pp. 2589-2591. (doi: 10.1063/1.1795366)

Djurišić, A.B., Choy, W.C.H., Roy, V.A.L. , Leung, Y.H., Kwong, C.Y., Cheah, K.W., Gundu Rao, T.K., Chan, W.K., Fei Lui, H. and Surya, C. (2004) Photoluminescence and electron paramagnetic resonance of ZnO tetrapod structures. Advanced Functional Materials, 14(9), pp. 856-864. (doi: 10.1002/adfm.200305082)

Kwong, C.Y., Djurišić, A.B., Roy, V.A.L. , Lai, P.T. and Chan, W.K. (2004) Influence of the substrate temperature to the performance of tris (8-hydroxyquinoline) aluminum based organic light emitting diodes. Thin Solid Films, 458(1-2), pp. 281-286. (doi: 10.1016/j.tsf.2004.01.042)

Roy, V.A.L. , Djurišić, A.B., Liu, H., Zhang, X.X., Leung, Y.H., Xie, M.H., Gao, J., Lui, H.F. and Surya, C. (2004) Magnetic properties of Mn doped ZnO tetrapod structures. Applied Physics Letters, 84(5), pp. 756-758. (doi: 10.1063/1.1645312)

Roy, V.A.L. , Pode, R.B., Rao, T.K.G., Djurišić, A.B. and Baldacchini, G. (2004) Optical and ESR studies of Tris(8-hydroxyquinoline)aluminum. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 106(1), pp. 85-88. (doi: 10.1016/j.mseb.2003.09.017)

Roy, V.A.L. , Djurišić, A.B., Chan, W.K., Gao, J., Lui, H.F. and Surya, C. (2003) Luminescent and structural properties of ZnO nanorods prepared under different conditions. Applied Physics Letters, 83(1), pp. 141-143. (doi: 10.1063/1.1589184)

Roy, V.A.L. and Pode, R.B. (2002) Optical studies of doped aluminum tris (8-hydroxy quinoline) thin films. Thin Solid Films, 417(1-2), pp. 180-182. (doi: 10.1016/S0040-6090(02)00643-0)

Book Sections

Zhou, Y., Han, S.-T. and Roy, V.A.L. (2014) Nanocomposite dielectric materials for organic flexible electronics. In: Tjong, S.-C. (ed.) Nanocrystalline Materials: Their Synthesis-Structure-Property Relationships and Applications [Second Edition]. Elsevier: London, pp. 195-220. ISBN 9780124077966 (doi:10.1016/B978-0-12-407796-6.00006-3)

Conference Proceedings

Quy, V. N., Duy, D. T. X., Kien, D. T., Tu, V. H., Sun, Q., Roy, V. A. L. , Pham, V.-T. and Dao, T. T. (2019) Wearable Device for Monitoring Heart Rate Based on Low-Cost Piezoresistive Sensor. In: 2019 8th International Conference on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 13-15 May 2019, ISBN 9781728111841 (doi:10.1109/MOCAST.2019.8741734)

Kong, K. W., Law, J., Chen, M., Suo, Z., Jia, B., Roy, V. A.L. , Chan, H.-Y. and Li, W. J. (2018) Micro-Dispensing of Graphene Oxide Based Capacitive Tactile Sensors for Human Pressure-Pulse Detection. In: 2018 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS), Nagoya, Japan, 04-08 Jul 2018, ISBN 9781538648414 (doi:10.1109/MARSS.2018.8481149)

Padmanabhan, R., Venkatramanan, K., Girivel, S., Kasthuri, K., Usharani, A., Gayathri, A. and Vellaichamy, R. (2017) Mathematical and Experimental Analysis of Ultrasound Velocity and Refractive Index in Binary Mixtures of Pharmaceutically Important Polymer—PEG 600. In: International Conference on Recent Trends in Materials Science and Applications (ICRTMSA 2016), Tiruchirappalli, India, 29 Feb 2016, pp. 709-722. ISBN 9783319448893 (doi:10.1007/978-3-319-44890-9_57)

Padmanabhan, R., Venkatramanan, K., Girivel, S., Kasthuri, K., Usharani, A. and Vellaichamy, R. (2017) Thermal and Rheological Studies of Aqueous Solutions of PEG 400 and PEG 1500 Having Pharmaceutical Applications. In: International Conference on Recent Trends in Materials Science and Applications (ICRTMSA 2016), Tiruchirappalli, India, 29 Feb 2016, pp. 723-730. ISBN 9783319448893 (doi:10.1007/978-3-319-44890-9_58)

Shiliang, J., Qi-Jun, S., Venkatesh, S., Yan, Y., Zhou, Y., Zhuang, J., Zhou, L., Han, S., Xu, Z.-X. and Roy, V.A.L. (2016) Low-voltage Extended Gate Organic Thin Film Transistors for Ion Sensing Based on Semi-conducting Polymer Electrodes. In: SPIE OPTO 2016, San Francisco, CA, USA, 13-18 Feb 2016, (doi:10.1117/12.2218397)

Sun, F., Huang, L.-B. and Vellaisamy, R. A.L. (2012) Discussion on Scientific Teaching for the Discovery-enriched Science Course. In: 2nd International Conference on Education and Education Management (EEM 2012), Hong Kong, China, 04-05 Sep 2012, pp. 574-579.

Roy, V. A. L. , Xu, Z.-X., Stallinga, P., Ziang, H.-F., Yan, B. and Che, C.-M. (2007) Nanocomposite Field Effect Transistors based on Zinc Oxide/Polymer Blends. In: 2007 Digest of Papers Microprocesses and Nanotechnology, Kyoto, Japan, 05-08 Nov 2007, pp. 104-105. ISBN 9784990247249 (doi:10.1109/IMNC.2007.4456126)

Roy, V.A.L. , Xu, Z.-X., Zhi, Y.-G., Yu, S.-C. and Che, C.-M. (2005) Metal-Organic Pentacene Derivative With Well Ordered Morphology for the Application of Low Voltage Organic Thin Film Transistors. In: Optics and Photonics 2005, San Diego, CA, USA, 31 Jul - 04 Aug 2005, 59401L. (doi:10.1117/12.629622)

Roy, V.A.L. , Kwong, C.Y., Djurišić, A.B., Pode, R.B., Gundu Rao, T.K. and Chan, W.K. (2004) Improvement in the Environmental Stability of Tris(8-hydroxyquinoline) Aluminum by Substitution of Sulphonic Acid in 8-hydroxyquinoline Ligand. In: Optical Science and Technology, SPIE's 48th Annual Meeting, San Diego, CA, USA, 03-08 Aug 2003, pp. 283-290. (doi:10.1117/12.503009)

Roy, V.A.L. , Djurišić, A.B., Li, Q., Xu, S.J., Lui, H.F., Surya, C. and Gao, J. (2003) Simple Technique for Bulk Quantity Synthesis of ZnO Tetrapod Nanorods. In: Optical Science and Technology, SPIE's 48th Annual Meeting, San Diego, CA, USA, 03-08 Aug 2003, pp. 51-58. (doi:10.1117/12.504700)

Patents

City University of Hong Kong CityU (2019) Electric device for detecting pressure. .

City University of Hong Kong CityU (2019) Emissions treatment apparatus and a method for treating emissions. .

City University of Hong Kong CityU (2018) Thermo-electric generator module. .

City University of Hong Kong CityU (2017) Electronic device for data storage and a method of producing an electronic device for data storage. .

City University of Hong Kong CityU (2017) Nickel complexes for flexible transistors and inverters. .

City University of Hong Kong CityU (2016) Metal nanoparticle monolayer. .

City University of Hong Kong CityU (2015) Phthalocyanine/ polymer nanocomposite ink for optoelectonics. .

City University of Hong Kong CityU (2015) Flexible amine sensor based on ultrathin poly-thiophene thin film transistor. .

This list was generated on Thu Sep 23 19:47:16 2021 BST.

Grants

 

Awards 

·         TRIL-Research Fellow (2003-04) awarded by The International Centre for Theoretical Physics (ICTP, UNESCO institution), Trieste, Italy.  

·         Excellent Product Award (2011, 12, 13 & 18) at China Hi-Tech Fair, The PRC's Ministry of Commerce 

·         Gold Medal at the 47th International Exhibition of Inventions of Geneva for the invention “Sensor platform for rapid analysis of targets from food contaminants to disease biomarkers using disposable testing strips”. 

 

Grants

Project Title:  Investigation on Carbon Based Terahertz Reflectors
Grant Type:  Strategic Research Grant 

 

Project Title:  On-site Detection of Heavy Metal Ions in Drinking Water
Grant Type:  ARG - Applied Research Grant

 

Project Title:  Development of Flexible Mems Pressure Sensors using Hierarchical Surface Structures for Texture Roughness Identification
Grant Type:  GRF - RGC General Research Fund

 

Project Title:  Sensing Device for Six Common Phthalates in Plastic
 
Grant Type:  ITF - Innovation and Technology Commission — Innovation and Technology Fund

 

Project Title:  Thermoelectric Cooling for the Construction of Solid-state Air Conditioner in the Lift
Grant Type:  ConRes-RO - Contract Research

Additional information

We are looking for PhD students to work on the following topics,

  • Point of Care (PoC) diagnostic tools for onsite testing of cancer biomarkers and contaminants in food and water
  • Wearable devices for real-time monitoring of human motions using piezoresistive and thermoelectric sensors.
  • Engineering of materials for the application in neuromorphic devices

If you are interested to work with an interdisciplinary team, please contact

Roy.Vellaisamy@glasgow.ac.uk