Bendable Electronics and Sensing Technologies (BEST) Group
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3 Marie Curie Early Stage Researcher posts – INTUITIVE Project (Deadline – Dec 2019)
Our monograph ‘1-D Semiconducting Nanostructures: Growth Mechanisms and Suitability for Flexible and Large Area Electronics’ accepted for publication in Cambridge Element series on Flexible and Large Area Electronics.
Bendable Electronics and Sensing Technology (BEST) group focuses on the multidisciplinary fields, comprising: Nanostructures based Flexible Electronics (NanoFE), Energy Systems and Sensors, Assitive Robotic Technology (ART), and Biotronics. Our vision is to develop cost-effective high-performance flexible and large-area electronics and sensing systems on non-conventional substrates for wearable applications.
Nanostructures based Flexible Electronics
At BEST group, we investigate advanced materials, including semiconductor nanowires, two-dimensional materials, and stretchable electronic materials for various applications. We are exploring novel techniques involving:
Synthesis of semiconductor NWs on planar substrates and then transferring on flexible substrates using innovative printing methods.
For large area electronics, the group is exploring roll-to-roll printing of NWs. We are also using these methods to develop 3D-printed electronics and 3D-stacking of flexible systems.
We obtain ultra-thin chips by thinning Si-wafers using physical and chemical techniques down to about 10 μm. We are now advancing this area of research towards CMOS-based bendable ultra-thin tactile and chemical/bio-sensing chips.
Ultra-Thin Flexible CMOS Chips
Compact model for flexible Ion-Sensitive Field-Effect Transistor (ISFET) presented in BIOCAS Conference 2017 by Anastasios Vilouras:
Sensors and Energy Systems
Flexible electronics for sensing, data transmission, energy harvesting and storage applications are required to be robust against mechanical deformation. For this purpose, BEST group is exploring range of materials (e.g. graphene, piezoelectric polymers, nanocomposites etc.) and methods. Recently, the group has demonstrated:
- A low-cost method for synthesis and transfer of high-quality graphene on flexible substrates for large-area electronics. Novel and low cost method to developed a graphene based, energy-autonomous e-skin.
- High performance, graphene sheet-based supercapacitor.
- Novel pH sensing electrode integrated with stretchable radio-frequency-identification (RFID) antenna for wearable health monitoring applications.
A summary of our research about Energy Autonomous e-skin given by Dr. Garcia at IEEE Sensors Glasgow:
Stretchable pH sensors: A stretchable wireless system for sweat pH monitoring was developed, which is able to withstand up to 53% uniaxial strain and more than 500 cycles to 30% strain. The stretchability of the pH sensor patch is provided by a pair of serpentine-shaped stretchable interconnects. The pH sensing electrode is made of graphite-polyurethane composite, which is suitable for biosensor application. The sensing patch validated through in-depth electrochemical studies, exhibits a pH sensitivity of 11.13 ± 5.8 mV/pH with a maximum response time of 8 s. Interference study of ions and analyte (Na+, K+ and glucose) in test solutions shows negligible influence on the pH sensor performance. The pH data can be wirelessly and continuously transmitted to smartphone through a stretchable radio-frequency-identification antenna, of which the radiating performance is stable under 20% strain, as proved by vector network analyzer measurement. To evaluate the full system, the pH value of a human sweat equivalent solution has been measured and wirelessly transmitted to a custom-developed smart phone App.
Textile based pH sensors: Potentiometric pH sensor on cloth was fabricated pH by printing method. Sensitive (thick film graphite composite) and reference electrodes (Ag/AgCl) are printed on cellulose-polyester blend cloth. The developed textile-based pH sensor works on the basis of electrochemical reaction, as observed through the potentiometric, cyclic voltammetry (100 mV/s) and electrochemical impedance spectroscopic (10 mHz to 1 MHz) analysis. The electrochemical double layer formation and the ionic exchanges of the sensitive electrode-pH solution interaction are observed through the electrochemical impedance spectroscopic analysis. Potentiometric analysis reveals that the fabricated textile-based sensor exhibits a sensitivity (slope factor) of 4 mV/pH with a response time of 5 s in the pH range 6–9. The presented sensor shows stable response with a potential of 47±2 mV for long time (2000 s) even after it was washed in tap water. These results indicate that the sensor can be used for wearable applications.
Flexible pH sensor: Interdigitated structure was used for the development of flexible nanostructured CuO based sensors. The sensor capacitance in the test frequency range (20 Hz–10 MHz) decreases exponentially with increase in pH. The CuO nanorectangle based sensor exhibits a sensitivity of 0.64 μF/pH in the range pH 5–8.5. The sensor performance towards interference to other ions and analytes such as Na+, K+, glucose, and urea was found to have negligible influence (±1.5 nF) on the sensing electrode. The capacitance of sensors is also found to vary with different bending conditions.
Multi-sensors for water quality monitoring: This work is aimed to investigate conductivity and temperature of a solution by using energy autonomous thick film sensors. A RuO2 based thick film electrode is fabricated for conductivity sensor and an interdigitated electrode with graphite sensitive electrode is used for temperature sensor. The operating range of 10-1000 μS/cm of the conductivity sensor shows its applicability in portable, tap and river water quality monitoring. The sensitivity of the temperature sensor in the range of 25-45°C is found to be 0.280/°C. For self-powered application, a hybrid integration of solar cell and flexible supercapacitor was successfully used. The performance of SC shows that at 0.5 rnA the SC can store an energy of 2μW/cm 2 with a power density of 0.05 mW/cm 2 , The charging of SC was carried out by using solar cell and the stored charge is used to operate conductivity and temperature sensors. In addition to this integration of pH sensors with above sensors are also carried out.
Energy Storage Systems
Flexible supercapacitor (SC): New flexible SCs were developed by using graphene and graphite polymer composites.
Graphene foam based flexible SC: A new flexible SC was developed based on 3D graphene foam (GFSC) and Ag conductive epoxy for self poweredwearable applications. With a novel layered structure of highly conductive electrodes (graphene-Ag conductive epoxy–graphene foam), forming an electrochemical double layer, the GFSC exhibits excellent electrochemical and supercapacitive performance. At a current density of 0.67 mA cm−2, the GFSCs show excellent performance with areal capacitance (38 mF cm−2) about three times higher than the values reported for flexible carbon-based SCs. The observed energy and power densities (3.4 µW h cm−2 and 0.27 mW cm−2 respectively) are better than the values reported for carbon-based SCs. Analyzed under static and dynamic bending conditions, the GFSCs are stable with up to 68% capacitance retention after 25000 charge–discharge cycles. For self-powered application GFSC was integrated with a flexible photovoltaic cellresulting in a flexible self-charging power pack. This pack was successfully utilized to power continuously a wearable CuO nanorod based chemi-resistive pH sensor
Graphene-Graphite Polyurethane based SC: This work presents high-energy density flexible SC, showing 3 times the energy density than similar type of SCs reported in the literature. The graphene – graphite polyurethane (GPU) composite based SCs have maximum energy and power densities of 10.22 μWh/cm2 and 11.15 mW/cm2 respectively at a current density of 10 mA/cm2 and operating voltage of 2.25 V (considering the IR drop). The significant gain in the performance of SCs is due to excellent electroactive surface per unit area (surface roughness 97.6 nm) of GPU composite and high electrical conductivity (0.318 S/cm). The fabricated SCs show stable response for more than 15000 charging/discharging cycles at current densities of 10 mA/cm2 and operating voltage of 2.5 V (without considering the IR drop). The developed SCs have been tested as energy storage devices for wide applications, namely: (a) solar-powered energy-packs to operate 84 LEDs for more than a minute and to drive the actuators of a prosthetic limb; (b) powering high-torque motors; and (c) wristband for wearable sensors, shown in Figure. This workdemonstrate for the first time the performance energy autonomy of prosthetic hand by using solar powered SCs.
Self-powered Sensors for healthcare applications: I carried out development of fully flexible self-charging power pack (FSPP) for flexible/wearable sensor system.Integration of supercapacitor with flexible solar cell and flexible chemi-resistive CuO nanorod based pH sensor.Once the FSPP is connected to the pH sensor, measured the resistance variation of flexible pH sensor as a function of different pH solutions. Prior to the pH sensor characterization, the GFSC in the FSPP is fully charged through PV cell under 1 sun illumination (3.8 mW cm−2, Isc = 26.6 mA, Voc = 4.7 V), using a voltage divider to limit the charging current and voltage up to 0.5 mA and 0.8 V, respectively. In this scenario, the GFSC can supply a potential of 0.8 V to the pH sensor even if we need < 250 mV. The proposed sensor will be utilized for sweat monitoring applications.
Assistive Robotics Technology
Our expertise in flexible electronics is extended towards the area of rehabilitation and assistive robotics technology. We are pursuing research in this direction by advancing materials and process innovations towards realizing smart electronic systems such as prosthesis, myoelectric band, sensory skin, haptic feedback systems, virtual and augmented reality interfaces. We are expanding the capabilities of 3D printing technology and embedding materials with inherent sensing capabilities. By exploring different materials and techniques, we are striving forward to improve the capabilities of soft robotics to viable systems of the future. Utilizing these advances enables us to advance the state-of-the-art in robotics and prosthesis.
- A summary of our research and vision is given in Dr. Dahiya TEDxGlasgow talk:
At BEST group, we are exploring disposable biosensors and electronics for wearable electronic systems. Scaffold engineering for 3D tissue growth and differentiation, wound-healing/monitoring using bio-ferroelectric materials are the major areas that our group is exploring. Progress has been made in the development of live-cell based electrochemical biosensors. The group employs smart hybrid materials as the active sensing platform for electrochemical sensing. The group also working towards the development of paper based sensors and electronics.
Major Current Projects:
1. neuPRINTSKIN – EPSRC Fellowship for Growth – Neuromorphic Printable Tactile Skin
2. HETEROPRINT – EPSRC Programme Grant.
3. PH-CODING – EU Future Emerging Technology (FET) OPEN Project.
4. North West Centre for Advanced Manufacturing (NWCAM) – EU project.
5. AQUASENSE – EU Marie Curie ITN Project
6. NeuTouch – EU Marie Curie ITN Project.
7. INTUITIVE – EU Marie Curie ITN Project.
8. Printed Supercapacitors – Royal Society – SERB, India funded Newton-Bhabha Fellowship Project
9. FLEXI-G – EU Marie Curie Fellowship Project.
10. ELECTROHEALL – EU Marie Curie Fellowship Project.
Major Past Projects:
11. BEND – EU Marie Curie Fellowship Project.
BEND studied the electrically controlled neuronal differentiation of stem cells on a soft, bendable electro conductive substrate. The aim of study was to develop scalable method for generating large number of mature, differentiated neuronal cells for the development of interfaces for implantable bioelectronics and to compensate neuronal loss in the degenerative disease or injuries.
12. Wearable Blood Pressure Monitoring Device – Newton Fellowship Project.
This project developed graphene based wearable displacement sensors or ‘pressure pixels’ for self-monitoring of heartbeat and blood pressure. The device (a smart wristband) measured the displacement caused by the periodic dilation of the over-pressured dorsal carpal branch of the radial artery (DCRA) at the wrist and transform the signal into a measurable output current.
13. PRINTSKIN – EPSRC Fellowship for Growth – Printable Tactile Skin.
PRINTSKIN developed the ultra-flexible tactile skin using an innovative methodology involving printing of high-mobility materials such as silicon on ultra-flexible substrates such as polyimide. The tactile skin has solid-state sensors (touch, temperature) and electronics printed on ultra-flexible substrates such as polyimide. This new technological platform to print tactile skin has enabled an entirely new generation of high-performance and electronics on flexible substrates. PRINTSKIN research is now being extended through neuPRINTSKIN project mentioned abover.
14. ‘FLEXELDEMO’ – Flexible Electronic Device Modelling.
Flexible electronic research has thus far focussed on exploring several materials and fabrication techniques. Whilst these are important areas, device modelling and circuit design are critical to take the research closer to manufacturing. The acceptable degree of bendability for reliable operation of devices and circuits is a question that has not been addressed so far. This is a challenging because the standard transistor models for circuit simulation programs such as SPICE do not take into account the dynamic bendability induced effects. FLEXELDEMO addressed these challenges by systematically characterizing the ultra-thin chips, identifying various parameters that change with bending, and suggesting improved BSIM models for devices over bendable substrates.
15. ‘CONTEST’– EU funded Marie Curie ITN project (Webpage – http://www.contest-itn.eu)
This Innovative Training Network (ITN) trained 18 young researchers and investigated the various critical aspects related to flexible electronics to obtain an electronically-enhanced and wearable smart skin for robotic applications. The silicon and organic materials based solutions were investigated to obtain systems with the advantages of both. BEST group members explored different techniques to integrate silicon and graphene based device on flexible substrates and obtaining reliable operation.
16.FLEXSENSOTRONICS– EU Funded Marie Curie Fellowship project.
The aim of this project was to develop method for transferring Si based macro/micro/nanostructures on physically flexible substrates to develop sensitive electronic systems for wearable electronic skin applications. The challenges included processing and combining stiff and brittle device materials with soft and compliant substrates while ensuring proper electrical functionality of the devices (when they undergo mechanical deformations). The two methodologies adopted in this project are:
(a) Microstructures based approach: The micro/nanostructures such and micro/nanowires and ribbons are obtained using top-down fabrication method. These micro/nanostructures are then transferred printed onto flexible subtrates in such as way that they result in electronics devices and circuits. Some results are shown in the figures below:
(b) Ultra-thin Flex-Chip Approach: The ultra-thin and mechanically flexible silicon chips are obtained by thinning down the conventional wafers and the transferring the these chips to flexible substrates. This Flex-Chip approach is complimentary to the micro/nanostructures based approach. Some results are shown in the figures below:
17. POSFET Tactile Sensing Arrays
The goal of this project was to develop POSFET (Piezoelectric Oxide Semiconductor Field Effect Transistor) tactile sensing arrays using piezoelectric polymers and MOS transistor. A reliable fabrication process, including the deposition, patterning and poling of piezoelectric polymer films on a silicon chip, was developed for fabricating the high resolution tactile sensing arrays. The POSFET research has now advanced towards tactile sensing system on-chip – with tactile sensing arrays and on-chip basic electronics. Some results are shown in the figures below:
18. Italian MIUR PRIN-2007 Project
The aim of this project was to develop POSFET touch sensing devices based tactile sensing system including interface electronics for the humanoid robot ‘i-cub‘.
19. ROBOSKIN – EU funded Project.
ROBOSKIN developed new sensor technologies to provide tactile feedback
from large areas of a robot’s body and demonstrated a range of new robot capabilities based on robot skin tactile feedback.
20. RobotCub – EU Funded Project (Webpage – http://www.robotcub.org)
|Prof. Ravinder Dahiya|
Dr. William Taube
|Dr. Oliver Okwudili
- Paper from BEST group accepted for publication in IEEE Sensors Journal.
- Paper from BEST group accepted for publication in Advanced Intelligent Systems.
- 5 papers from BEST group accepted for presentation during IEEE Sensors 2019, Montreal, Canada.
- Paper from BEST group accepted for publication in Nanoscale Advances.
- Paper from BEST group gets 2nd best paper award at IEEE FLEPS 2019. Congratulations Habib.
- 2 papers from BEST group accepted for publication in IEEE Sensors Journal.
- BEST group invited to join the Science is Great stand at Portuguese Science Summit to showcase touch interactive hologram and affordable prosthesis.
- BEST group invited to showcase touch interactive hologram and affordable prosthesis work during Queen’s Birthday Party at British Embassy, Lisbon, Portugal (18 June).
- BEST group invited to showcase the touch interactive hologram at Founder’s Forum, London, UK (13 June).
- Our monograph ‘1-D Semiconducting Nanostructures: Growth Mechanisms and Suitability for Flexible and Large Area Electronics’ accepted for publication in Cambridge Element series on Flexible and Large Area Electronics.
- BEST group to develop next gen. printed electronics/photonics with Univ. S. Florida, USA – thanks to UNI award.
- BEST group welcomes 2 new members – Yogeenth and Fida.
- Our Marie Curie ITN project focussing on neuroscience based e-skin gets funding from European Commission.
- 8 papers from BEST group accepted for presentation at IEEE FLEPS 2019, Glasgow, UK.
- PhD student from BEST group gets Bright Sparks Award 2019 (given to most talented young electronics engineers in the UK). Congratulations Shoubhik.
- BEST group welcomes a new members – Joao Neto.
- BEST group welcomes two new members – Saoirse Dervin and Lisa-Marie Faller.
- BEST group welcomes new member – Fabiane Franco.
- BEST group‘s entry for kickstart challenge among finalist for Converge Challenge 2019.
- Paper from BEST group accepted for publication in ACS Nano.
- BEST group welcomes 2 new members – Oliver and Prabhat.
- BEST group among ten cutting-edge groups/companies KTN is showcasing at the largest Wearable Technology Show.
- BEST group welcomes 3 new members – Mitradip, João, Jelle-Jan.
- 2 Papers from BEST group accepted for Lecture presentation at IEEE ISCAS 2019, Japan.
- Paper from BEST group accepted for publication (with minor revision) in Biosensors.
- Paper from BEST group accepted for publication (with minor revision) in Advanced Science.
- Paper from BEST group accepted for publication in NPJ Flexible Electronics.
- BEST group welcomes Dr. Mahesh Soni, who has joined the group as post-doc.
- BEST group‘s flexible super-capacitor work wins Elektra Award 2018 in the University Research Award Category.
- Our ICURe (Innovation to Commercialisation) project gets funding from InnovateUK.
- BEST group‘s entry to Converge challenge shortlisted for 2019 Kick-Start Challenge.
- BEST group receives Newton-Bhabha funding from British Council to host a researcher from IIT Roorkee, India.
- Congratulations to William for successfully defending his PhD thesis (with minor corrections).
- BEST group receives Newton-Bhabha funding from British Council to host a researcher from IIT Roorkee, India.
- Congratulations to Shoubhik and Wenting for successfully defending their PhD thesis (with minor corrections).
- Paper from BEST group accepted for publication in NPJ Flexible Electronics.
- Paper from BEST group accepted for publication in In Vitro Cellular & Developmental Biology – Animal.
- Paper from BEST group accepted for oral presentation at InnoLAE 2019, Cambridge, UK.
- Paper from BEST group gets third best paper award during IEEE Sensors Conference 2018. Congratulations Anastasios.
- BEST group welcomes new PhD student Ayoub Zumeit.
- Paper from BEST group accepted for publication in IEEE Sensors Journal.
- BEST group member wins IET travel award. Congratulations William.
- 2 papers from BEST group shortlisted for Best Student Award in IEEE Sensors 2018. Best of luck Wenting & Anastasios.
- Our FET OPEN project focussing on neuroscience based e-skin gets funding from European Commission.
- BEST group receives funding from The Royal Society to host a Newton Fellow.
- Paper from BEST group accepted for publication in Advanced Materials Technologies.
- Multiple papers from BEST group accepted for presentation in IEEE Sensors 2018 conference, N. Delhi, India.
- Our proposal for Special Issue on E-skin: From Humanoids to Humans accepted by the Proceedings of the IEEE.
- BEST group‘s e-skin research in Spanish, featured on Mexican TV FOROtv.
- BEST group hosts Prof. Takao Someya (from University of Tokyo) who presented state-of-art Electronic Skin and Strechable electronics for the next generation of health-monitoring systems directly integrated on a human skin.
- Our monograph ‘Integration Techniques for Micro/Nanostructures Based Large-area Electronics’ accepted for publication as part of Cambridge Univ. Press’s element series on Flexible and Large Area Electronics.
- BEST group announces 4 new Post-Doc positions starting as soon as possible.
- BEST group hosts US Congress Officials.
- The Royal Academy of Engineering announces seed funding for BEST group‘s project on circular economy.
- BEST group project on "Brainy Skin" mentioned in "The Times of India", "The Engineer", "Glasgow Live", "NDTV", and "University of Glasgow News".
- The Royal Academy of Engineering announces seed funding for BEST group‘s project on circular economy
- Paper from BEST group accepted for publication in IEEE Sensors Journal
- Paper from BEST group accepted for publication in Nano Energy.
- Paper from BEST group accepted for publication in Applied Physics Letters.
- Paper from BEST group accepted for presentation in IEEE RO-MAN 2018, Nanjing, China.
- BEST group among top-5 3D printing specialists in Scotland leading the global market.
- BEST group‘s project on circular economy gets funding from the Royal Academy of Engineering.
- Exciting time for BEST group with funding confirmed for 2 EU projects.
- Paper from BEST group accepted for publication in Microsystems and Nanoengineering (from Nature).
- Paper from BEST group accepted for publication in IEEE Sensors Journal.
- BEST group’s research on stretchable health sensor on EU website.
- UKRI includes BEST group‘s e-skin research in the government campaign ‘Year of Engineering‘ to celebrate the world of engineering and its impact.
- Another BEST group member selected as lecturer. Best wishes to Carlos Garcia Nuñez for new job at University of West of Scotland.
- BEST group’s research prominently featured in the recently launched Scotland is Now campaign.
- Our ~£7M (FEC) Programme Grant ‘Heteroprint‘ gets funding from EPSRC.
- Our ICURe Innovation to Commercialisation project gets funding from BEIS and InnovateUK.
- BEST group research on ‘Energy Autonomous Electronic Skin' highlighted in University of Glasgow's Annual Review for 2017.
- BEST group research on high-performance bendable electronics discussed in University of Glasgow News.
- BEST group launches YouTube Channel.
- Stretchable health sensor research from BEST group discussed in "University of Glasgow News", "The Scotsman", "Nursing Times" "The Engineer", "Buisiness Standard", "Outlook", "India", and "India Today"
- e-skin research from BEST group discussed in BBC Radio’s Brainwaves: An Adventure in Skin.
- Paper from BEST group accepted for publication in Sensors & Actuators B: Chemical.
- Paper from BEST group accepted for publication in Biosensors & Bioelectronics.
- Paper from BEST group accepted for publication in Organic Electronics.
- BEST group continues to attract Marie Curie Fellows. This year two more fellows will join the BEST group.
- Paper from BEST group accepted for publication in Advanced Electronic Materials
- TV coverage of BEST group’s e-Skin research for prosthetics on ‘Forces 360‘ – from 5:30 min
- Prof. Dahiya presenting latest research from BEST group at InnoLAE 2018, Cambridge, UK
- Fatemeh Nikbakht, and Guanbo Min join the BEST group as PhD students.
- Paper from BEST group accepted for publication in ACS Applied Materials & Interfaces.
- Prof. Dahiya gives plenary lecture at IEEE ICECS, Batumi, Georgia
- Habib Nassar from BEST group was at Duncanrig High School, East Kilbride to demonstrate different types of touch technologies under Ingenious Engineer initiative.
- Prof. Dahiya presents e-skin and wearbales for robonauts and astronauts in space at Young Professionals in Space, Bangalore, INDIA
- Prof. Dahiya giving IEEE DL talk at Indian Institute of Science, Bangalore, India
- Prof. Dahiya presents e-skin research at INCmty 2017, Entrepreneurship summit Monterrey, Mexico
- Prof. Dahiya presents e-skin research at Franco–Scottish Seminar: Robotics, The Royal Society of Edinburgh
- Shoubhik Gupta from BEST group was at Millburn Academy, Inverness to demonstrate touch sensing technologies to high school students under Ingenious Engineer initiative.
- Congratulations to MSc students of BEST group for their well deserved success and best wishes for their future goals.
- Paper from BEST group accepted for publication in Mechatronics.
- Paper from BEST group titled "Ultra-Thin Chips for High-Performance Flexible Electronics" accepted for publication in Nature NPJ Flexible Electronics.
- 1 paper from BEST group accepted for presentation in BIOCAS 2017 Conference, Turin, Italy.
- BEST group is hosting Prof.Giorgio Metta from Instituto Italiano di Technologia for talk titled "From ICub to R1".
- Prof. Dahiya invited to give Plenary talk at IEEE ICECS, Batumi, Georgia.
- Our SFC – Global Challenge Research project gets funded.
- BEST group to work with several industry partners in the new EU funded project on Advanced Manufacturing.
- Two papers from BEST group shortlisted for IEEE Sensors 2017 student awards.
- Several papers from BEST group are presented in IEEE Sensors Conference 2017 at SEC Glasgow.
- Public engagement initiative highlighting scientific heritage through posters at all Glasgow subway stations goes live, with hugely exciting initial response. About 600K people will use Glasgow subway during the display period (23 Oct – 5 Nov).
- BEST group poster appears in Glasgow's subway showcasing our Science Heritage (#OurScienceHeritage)
- Clara Smith, Markellos Ntagios and Habib Nassar join the BEST group as PhD students.
- Prof. Dahiya gives invited talk in e-skin at Human Brain Project (HBP) Summit.
- BEST group is hosting IEEE Fellow Prof. Siegfried Bauer from Johannes Kepler Universität Linz for Guest Lecture in "Dielectrics in Soft Devices".
- BEST group‘s e-skin research discussed in Horizon – The EU Research and Innovation Magazine.
- Prof. Dahiya gives invited talk at Nanoinnovations, Rome, Italy.
- Prof. Dahiya gives Keynote lecture at IEEE NGCAS, Genoa, Italy.
- BEST group is showcasing our exciting work on e-skin at Explorathon 2017.
- Prof. Dahiya gives invited talk at ARM Summit (#armsummit).
- BEST group members presenting their MSc research works at the School of Engineering during a poster presentation session hosted at University of Glasgow.
- Paper from BEST group accepted for publication in Frontiers in Neuroscience.
- Multiple papers from BEST group have been accepted as oral/poster presentations in next IEEE Sensors Conference (Glasgow, 2017).
- Prof. Dahiya to give Keynote lecture IEEE NGCAS, Genoa, Italy.
- 1 paper from BEST group accepted for publication in Mechatronics.
- 1 paper from BEST group accepted for presentation in IEEE NGCAS, Genoa, Italy.
- Prof. Dahiya gives IEEE DL talk at speak at ST Microelectronics, Catania, Italy.
- Prof. Dahiya gives invited talk at MoDeSt workshop, Italy.
- EPSRC Council members visit BEST group labs.
- BEST group congrats Prof. Dahiya for his new position at UoG.
- BEST group’s research presented at ‘Science is GREAT‘ event, Singapore.
- 2 new fully-funded PhD positions open in BEST group.
- BEST group welcomes two new members – Kaung and Adnan.
- 2 papers from BEST group accepted for presentation in ECCTD 2017, Catania, ITALY.
- New patent application on ‘Prosthetics with Embedded Touch’ submitted from BEST group.
- BEST group participates in Scottish Research Partnership in Engineering conference in Advanced Forming Research Centre (AFRC).
- BEST group participates in the event: "Meet the Expert", organized at Glasgow Science Centre.
- Paper from BEST group accepted for publication in Applied Physics Reviews.
- Dr. Garcia to speak at 'Robots, it makes sense' event of Pint of Science in Glasgow, UK (16 May).
- Dr. Dahiya to speak at ‘From Romans to Robotics: A Medical Journey‘ event of Pint of Science in Glasgow, UK (17 May).
- BEST group organises Wearable Systems – Frontier Technology for Healthcare workshop at IISc Bangalore (17-18 Apr).
- Paper from BEST group accepted in Applied Physics Reviews.
- BEST Group latest work on energy autonomous tactile skin attracts huge interest: 1) BBC News, 2) Forbes, 3) The Times, 4) TheHindu.com, 5) Yahoo Finance!, 6) Cnet.com, 7) Inverse.com, 8) Msn.com, 9) Controlled Enviroments, 10) Techtimes, 11) Nanowerk, 12) myScience, 13)Phys.org, 14) Uncova, 15) New Atlas, 16) Bectn.Ru, 17) Med Device Online, 18) Eco-Business, 19) CBS News, 20) Nature World News, 21) Medline Plus, 22) Pourquoi Docteur, 23) Foreign Affairs, ... See further news regarding this paper at Advanced Functional Materials News.
- Paper from BEST group published in Advanced Functional Materials is already online (Click here).
- 4 papers from BEST group accepted for presentation in IEEE ISIE 2017, Edinburgh, UK.
- Dr. Dahiya to give IEEE DL talk at Georgia Institute of Technology, Atlanta, USA.
- Dr. Dahiya to give keynote lecture at IEEE – ICPCES 2017, Allahabad, India.
- Dr. Dahiya to give IEEE DL talk at Georgia Institute of Technology, Atlanta, USA.
- New patent application on ‘Energy Autonomous Electronic Skin’ submitted from BEST group.
- Paper from BEST group accepted for publication in IEEE Trans. Electron Devices.
- Paper from BEST group accepted for publication in Advanced Functional Materials.
- Malini Sen – Senior Editor (Times of India) visits BEST group laboratories.
- SFC – Global Challenge project led by Dr. Dahiya gets funded.
Bendable Electronics and Sensing Technologies (BEST) group laboratory is equipped with tools needed for design, fabrication and characterization of flexible and stretcahble electronics, including:
BEST Group Electronics Lab
(Lamination and Extraction Flow)
High Temperature Furnaces
DI water system (15 MΩ cm)
Electrical Characterization Tool
(multimeters, oscilloscope, wave generator, LCR meter, etc)
Dynamic Pressing Systems
Electro-chemical Characteriation Tools
3 and 4 points Bending System
Ultrasound bath and probe
(Microscope, Four Micrometric Probe Station)
Soldering and Mechanical Areas
Screen-Stencil Printer Mod C920 Aurel Automation SpA
Nanofiber Electrospinning Unit
Super Inkjet Printer
Universal Robot UR5
High-resolution 3D Printer
BEST Group also has access to the following facilities at the University of Glasgow:
- James Watt Nanofabrication Centre (JWNC), which is one of the finest nanofabrication facilities in the world, having state-of-the-art micro/nanofabrication and metrology equipment.
- Electronics Systems Design Centre, which provides resources and facilities for high-end electronic, microsystem, radiofrequency, microwave, terahertz, optical and biomedical system design, research and development.
- G. Min, L. Manjakkal, D. Mulvihill, R. Dahiya, Triboelectric Nanogenerator with Enhanced Performance via an Optimized Low Permittivity Substrate, IEEE Sensors Journal, Vol. ???, 2019 (in Press).
- W. T. Navaraj, R. Dahiya, Fingerprint-enhanced capacitive-piezoelectric flexible sensing skin to discriminate static and dynamic tactile stimuli, Advanced Intelligent Systems, Vol. ???, 2019 (in Press).
- D. Sakthivel, W. T. Navaraj, Simon Champet, D. H. Gregory, R. Dahiya, Propagation of Amorphous Oxide Nanowires via the VLS Mechanism: Growth Kinetics, Nanoscale Advances, Vol. ???, 2019 (in Press).
- Md. Abdul Kafi, A. Paul, A. Vilouras, E. S. Hosseini, and R. Dahiya, Chitosan-Graphene Oxide based Ultra-thin and Flexible Sensor for Diabetic Wound Monitoring, IEEE Sensors Journal, Vol. 19 (2), pp 435-442, 2019 (in Press)
- S. Gupta, N. Yogeswaran, F. Giacomozzi, L. Lorenzelli, and R. Dahiya, Touch Sensor based on Flexible AlN Piezocapacitor Coupled with MOSFET, IEEE Sensors Journal, Vol. ???, 2019 (in Press).
- F. Liu, W. T. Navaraj, N. Yogeswaran, D. H. Gregory, and R. Dahiya, Van der Waals contact engineering of graphene field-effect transistors for large-area, high-performance flexible electronics, ACS Nano, Vol. 13 (3), pp 3257–3268, 2019.
- L. Manjakkal, W. T. Navaraj, C. G. Nunez, and R. Dahiya, Graphene-Graphite Polyurethane Resin Composites for High-Energy Density Supercapacitors, Advanced Science, Art. 1802251, 2019
- R. Dahiya, e-Skin: From Humanoids to Humans, Proceedings of the IEEE, Vol. 107 (2), pp 247-252, 2019.
- L. Manjakkal, W. Dang, N. Yogeswaran, and R. Dahiya, Textile Based Potentiometric Electrochemical pH Sensor for Wearable Applications, Biosensors, Vol. 9(14), pp 1-12, 2019.
- C. G. Nunez, L. Manjakkal, and R. Dahiya, Energy Autonomous Electronic Skin, NPJ Flexible Electronics, Vol. 3, Art 1, 2019.
- Mst Khudishta Aktar, Md Abdul Kafi, and R. Dahiya, Association of Gpx1 fluctuation in cell cycle progression, In Vitro Cellular & Developmental Biology – Animal, Vol. 55 (2), pp 94-103, 2019.
- S. Gupta, D. Sakthivel, L. Lorenzelli, and R. Dahiya, Temperature Compensated Tactile Sensing using MOSFET with P(VDF-TrFE)/BaTiO3 Capacitor as Extended Gate, IEEE Sensors Journal, Vol. 19 (2), pp 435-442, 2018.
- L. Manjakkal, D. Sakthivel and R. Dahiya, Flexible Printed Reference Electrodes for Electrochemical Applications, Advanced Materials Technologies, Vol. 3, 1800252, 2018
- C. G. Nunez, A. Vilouras, W. T. Navaraj, F. Liu, and R. Dahiya, ZnO Nanowires based Flexible UV Photodetector System for Wearable Dosimetry, IEEE Sensors Journal, Vol 18 (19), pp 7881-7888, 2018.
- L. Manjakkal, C. G. Nunez, W. Dang, and R. Dahiya, Flexible Self-Charging Supercapacitor Based on Graphene-Ag-3D Graphene Foam Electrodes, Nano Energy, Vol. 51, pp 604-612 2018
- N. Yogeswaran, W. T. Navaraj, S. Gupta, F. Liu, V. Vinciguerra, L. Lorenzelli, and R. Dahiya, Piezoelectric Graphene Field Effect Transistor Pressure Sensors for Tactile Sensing, Applied Physics Letters, Vol. 113, 014102, 2018.
- C. G. Nunez, F. Liu, W. T. Navaraj, A. Christou, D. Shakthivel, and R. Dahiya, Heterogeneous Integration of Contact-printed Semiconductor Nanowires for High Performance Devices on Large Areas, Microsystems & Nanoengineering, Vol. 4, Art. 22, 2018.
- L. Manjakkal, A. Vilouras and R. Dahiya, Screen Printed Thick Film Reference Electrodes for Electrochemical Sensing, IEEE Sensors J., Vol 18 (19), pp 7779-7785, 2018.
- W. Dang, L. Manjakkal, W. T. Navaraj, L. Lorenzelli, V. Vinciguerra and R. Dahiya, Stretchable Wireless System for Sweat pH Monitoring, Biosensors and Bioelectronics, Vol. 107, pp 192-202, 2018.
- L. Manjakkal, B. Sakthivel, N. Gopalakrishnan, and R. Dahiya, Printed Flexible Electrochemical pH Sensors based on CuO Nanorods, Sensors and Actuators B: Chemical, Vol. 263, pp 50-58, 2018.
- W. T. Navaraj, S. Gupta, L. Lorenzelli, and R. Dahiya, Wafer Scale Transfer of Ultra-Thin Silicon Chips on Flexible Substrates for High Performance Bendable Systems, Advanced Electronic Materials, Vol. 4, 1700277, 2018.
- C. García Núñez, W. Taube Navaraj, F. Liu, D. Sakthivel, and R. Dahiya,”Large-area Self-assembly of Silica Micro/nanospheres by Temperature-assisted Dip-coating,” ACS Applied Materials and Interfaces, Vol. 10 (3), pp 3058–3068, 2018.
- S. Gupta, W. T. Navaraj, L. Lorenzelli, and R. Dahiya, Ultra-Thin Chips for High-Performance Flexible Electronics, NPJ Flexible Electronics, Vol. 2, Art 8, 2018.
- W. T. Navaraj, C. García Núñez, D. Sakthivel, V. Vinciguerra, F. Labeau, D. Gregor, and R. Dahiya, "Nanowire FET based Neural Element for Robotic Tactile Sensing Skin," Frontiers in Neuroscience (doi: 10.3389/fnins.2017.00501) 2017.
- S. Khan, L. Lorenzelli, and R. Dahiya, "Towards flexible asymmetric MSM structures using Si microwires through contact printing," Semiconductor Science and Technology, Vol. 32 (8), p. 085013, 2017.
- S. Luo, J. Bimbo, R. Dahiya and H. Liu, "Robotic Tactile Perception of Object Properties: A Review," Mechatronics, (Accepted) 2017.
H. Heidari, N. Wacker, and R. Dahiya,"Bending Induced Variations in Ultra-Thin Flexible Chips and Device Modeling," Applied Physics Reviews, Vol. 4, p. 031101, 2017.
C. García Núñez, W. T. Navaraj, E. O. Polat, R. Dahiya"Energy Autonomous Flexible and Transparent Tactile Skin," Advanced Functional Materials, Vol. 27, p. 1606287, 2017.
- A. Vilouras, H. Heidari, S. Gupta, and R. Dahiya, Modelling of CMOS Devices and Circuits on Flexible Ultra-Thin Chips, IEEE Transactions on Electron Devices, Vol. 64, NO. 5 2017.
- W. Dang, V. Vinciguerra, L. Lorenzelli and R. Dahiya, Printable Stretchable Interconnects, Flexible and Printed Electronics, Vol. 2, 013003, 2017.
- M. Simi´c, L. Manjakkal, K. Zaraska, G. M. Stojanovi´c and R. Dahiya, TiO2 Based Thick Film pH Sensor, IEEE Sensors Journal, Vol. 17 (2), pp 248-255, 2017.
- S. Gupta, H. Heidari, A. Vilouras, L. Lorenzelli and R. Dahiya, Device Modelling for Bendable Piezoelectric FET-Based Touch Sensing System, IEEE Transactions on Circuits and Systems I, Vol. 63 (12), pp 2200-2208, 2016.
- H. Heidari, E. Bonizzoni, G. Umberto, F. Maloberti and R. Dahiya, CMOS Vertical Hall Magnetic Sensors on Flexible Substrate, IEEE Sensors Journal, Vol. 16(24), pp 8736-8743, 2016.
- S. Khan, L. Lorenzelli and R. Dahiya, Flexible MISFET Devices from Transfer Printed Si Microwires and Spray Coating, IEEE Journal of Electron Device Society, Vol. 4 (4), pp 189-196, 2016.
- E. O. Polat, O. Balci, N. Kakenov, H. Burkay Uzlu, C. Kocabas and R. Dahiya, Synthesis of Large Area Graphene for High Performance in Flexible Optoelectronic Device, Scientific Reports, Vol. 5, Art no. 16744, 2015. – Top 100 read Scientific Reports articles in 2015 (from about 11000 papers)
- H. Heidari and R. Dahiya, Multiple facets of tightly coupled transducer-transistor structures, Nanotechnology, Vol. 26, pp 482501, 2015.
- S. Khan, N. Yogeswaran, W. Taube, L. Lorenzelli and R. Dahiya, Flexible FETs using ultrathin Si microwires embedded in solution processed dielectric and metal layers, Journal of Micromechanics and Microengineering, Vol. 25 (12), pp 125019, 2015.
- N. Yogeswaran, W. Dang, W.T. Navaraj, D. Shakthivel, S. Khan, E.O. Polat, S. Gupta, H. Heidari, M. Kaboli, L. Lorenzelli, G.Cheng and R. Dahiya, New Materials and Advances in Electronic Skin for Interactive Robots, Advanced Robotics, Vol. 29 (21), pp 1359–1373, 2015.
- K. Kühnlenz, B. Kühnlenz and R. Dahiya, T. Someya, A. Yamamoto, G.Cheng, Guest Editorial Special Issue on Robotic Sensor Skins, Advanced Robotics, Vol. 29 (21), pp 1357, 2015.
- S. Khan, W. Dang, L. Lorenzelli and R. Dahiya, Flexible Pressure Sensors based on Screen Printed P(VDF-TrFE) and P(VDF-TrFE)/MWCNTs, IEEE Transactions on Semiconductor Manufacturing, Vol. 28 (4), pp 486-493, 2015.
- R. Dahiya, G. Gottardi and N. Laidani, PDMS residues-free micro/macrostructures on Flexible Substrates, Microelectronic Engineering, Vol. 136, pp 57-62, 2015. (Area – Flexible Electronics) – Among top 5 most downloaded articles of MEE since publication.
- R. Dahiya, M. M. Tentezeris, Z. Cui and M. Singh, Guest Editorial Special Issue on Printable Sensors and Systems, IEEE Sensors Journal, Vol. 15(6), pp 3093-3093, 2015.
- S. Khan, L. Lorenzelli and R. Dahiya, Technologies for Printing Sensors and Electronics over Large Flexible Substrates: A Review, IEEE Sensors Journal, Vol. 15, pp 3164-3185, 2015. – Among most popular articles of IEEE Sensors J. since publication.
- S. Khan, S. Tinku, L. Lorenzelli and R. Dahiya, Flexible Tactile Sensors using Printed P(VDF-TrFE) and Composites of MWCNT/PDMS, IEEE Sensors Journal, Vol. 15, pp 3146-3155, 2015. – Among most popular articles of IEEE Sensors J. since publication.
We are looking for outstanding PhDs/Post-Docs interested in the field of flexible/bendable and printable electronics, e-skin, soft robotics and sensing. If you want to join BEST group, then send to Prof. Ravinder Dahiya your latest CV with 2 most recent papers.
Some of the PhD/Post-Doc positions currently available are related to following project:
- 1 Post-Doc position (neuPRINTSKIN Project) currently available in BEST Group (Deadline – May/June 2019)
- 1 PhD position related to Heteroprint Project (EPSRC Programme Grant)
- 1 PhD position – EPSRC Centre for Doctoral Training – SOCIALS (Deadline – 7 July 2019)
- 1 Marie Curie Early Stage Researcher posts – NeuTouch Project (Deadline – June/July 2019)
- 1 Marie Curie PhD position (degree to be awarded by Glasgow, but candidate will be hired by FBK Trento) - Aquasense Project (Deadline - 17 June 2019)
- 3 Marie Curie Early Stage Researcher posts – INTUITIVE Project (Deadline – Dec 2019)
Some more PhD positions currently available are:
- Sweat based sensor for Health monitoring
- Robotic/Prosthetic Hand with embedded tactile sensing
- Contact Lens with Embedded Biosensors
- Electronic Contact Lens
- Compact Modeling of Electronic Devices on Flexible Substrates
- Ultra-thin Bendable Microsystems for Biomedical Applications
- Flexible Electronic devices using Compound Semiconductors
- Flexible Magnetic Sensing Microsystem
- Bioengineered skin for prosthetics interface
- Energy autonomous electronic skin (I)
- Energy autonomous electronic skin (II)
- Integrating high efficiency energy conversion materials on flexible substrates
- Development of Flexible Giant MagnetoResistance (GMR) Sensor
- Multi-sensors Integrated with Smart Bandage for Wound Monitoring
- Wearable device for cardiac care
Prof. Ravinder Dahiya has been successful in supporting a large number of strong candidates for Fellowships, including Marie Curie fellowships and Newton Fellowship. His commitment towards nurturing future research leaders is reflected by that fact that he was the finalist in the ‘Nurturing Research Talents’ category of 2014 Marie Skłodowska-Curie Actions awards. Information about the various fellowships, the application procedure and closing dates, can be found via following links:
- Lord Kelvin Adam Smith Fellowships
- Marie Curie Fellowships
- EPSRC Fellowships
- Royal Academy of Engineering Fellowships
- STFC Fellowships
- Scottish Enterprise/Royal Society of Edinburgh (RSE) Enterprise Fellowships
- Royal Society University Research Fellowships
- Royal Society Dorothy Hodgkin Fellowships
- Newton International Fellowships
- Ernst Rutherford Fellowships
- The Leverhume Trust Fellowships
- University of Glasgow Fellowship Schemes
Available B.Eng, M.Eng and M.Sc projects:
Students from universities who are interested in one of the projects listed below, please contact Dr. Dahiya by email, phone or in person. It is sometimes possible to have two students working on the same project. Please discuss the formalities and other informal discussion with BEST group members at room number 461, James Watt South Building.
- Smart Multi-sensor Electronic Glove for Sensitive Artificial Prosthetic/Robotic Hand
- Polycrystalline Si-nanowires as efficient thermoelectric materials
- Ultra-Thin Flexible CMOS Magnetic Sensors for Wearable Applications
- Analog Sensor Interfaces for Biomedical Applications
- Low-Power Ultra-Low Offset Op-Amp
- Ultra-low power Capacitive-to-Digital Converter (CDC)
- Low-Power Piezoelectronic Transistors (PET)
- Ultra-low power SAR ADC
- 3D Bendable Magnetic Hall Sensor Flexible Electronics Application
- Gesture controlled prosthetics/robotics
- Modelling and Simulation of Silicon Nanowires based Neural Logics and Circuits
- Silicon nanowires fabrication towards flexible electronics application
- Atomistic Modelling and Simulation of Silicon Nanowires
- Si-nanowire based flexible photo-sensors array/solar cells