Dr Gordon Hedley

  • Lecturer (Chemistry)

Biography

Gordon Hedley is a Lecturer in Chemical Physics—Physical Chemistry at the School of Chemistry at the University of Glasgow.  His full academic C.V. is available on his group website.


Research interests

The Hedley Lab uses cutting-edge microscopy techniques to study the nanoscale photophysics of organic semiconductors, primarily at the single molecule/single polymer chain level. These materials are widely used in organic solar cells and light emitting diodes, and our work helps to grasp why materials do or do not work, and how efficiencies can be enhanced.

Much more about who we are, what we do and why we do it can be found at our group website.

 

Selected Publications

Selected publications are shown below. See the group publications page for a full list.

  • G.J. Hedley, A. Ruseckas, A. Harriman & I.D.W. Samuel, Conformational Effects on the Dynamics of Internal Conversion in Boron Dipyrromethene Dyes in Solution, Angewandte Chemie International Edition, 50, 6634 (2011),  DOI: 10.1002/anie.201101219

  • G.J. Hedley, A.J. Ward, A. Alekseev, C.T. Howells, E.R. Martins, L.A. Serrano, G. Cooke, A. Ruseckas & I.D.W. Samuel, Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells, Nature Communications, 4, 2867 (2013),  DOI: 10.1038/ncomms3867

  • L. Bergmann, G.J. Hedley, T. Baumann, S. Bräse & I.D.W. Samuel, Direct observation of intersystem crossing in a thermally activated delayed fluorescence copper complex in the solid state, Science Advances, 2, 1 (2016),  DOI: 10.1126/sciadv.1500889

  • G.J. Hedley, A. Ruseckas & I.D.W. Samuel, Light Harvesting for Organic Photovoltaics, Chemical Reviews, 117, 2 (2017),  DOI: 10.1021/acs.chemrev.6b00215

  • C. Ni, G.J. Hedley, J.L. Payne, V. Svrcek, C. McDonald, L.K. Jagadamma, P. Edwards, R. Martin, G. Jain, D. Carolan, D. Mariotti, P. Maguire, I.D.W. Samuel & J.T.S. Irvine, Charge carrier localised in zero-dimensional (CH3 NH3)3 Bi2I9 clusters, Nature Communications, 8, 170 (2017),  DOI: 10.1038/s41467-017-00261-9


Research datasets

Jump to: 2019
Number of items: 1.

2019

Scanlan, K., Kanibolotskyy, O., Breig, B., Hedley, G. and Skabara, P. (2019) Tetrathiafulvalene-oligofluorene star-shaped systems: new semiconductor materials for fluorescent moisture indicators. [Data Collection]

This list was generated on Thu Jul 18 15:36:01 2019 BST.

Additional information

  • Physical Section Safety Officer

Publications

List by: Type | Date

Jump to: 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2006
Number of items: 30.

2019

Scanlan, K., Kanibolotskyy, A. L., Breig, B., Hedley, G. J. and Skabara, P. J. (2019) Tetrathiafulvalene-oligofluorene star-shaped systems: new semiconductor materials for fluorescent moisture indicators. Journal of Materials Chemistry C, 7, pp. 6582-6591. (doi:10.1039/C9TC00845D)

2018

Hedley, G. J. , Steiner, F., Vogelsang, J. and Lupton, J. M. (2018) Fluctuations in the emission polarization and spectrum in single chains of a common conjugated polymer for organic photovoltaics. Small, (Accepted for Publication)

Hedley, G. J. , Quarti, C., Harwell, J., Prezhdo, O. V., Beljonne, D. and Samuel, I. D. W. (2018) Hot-hole cooling controls the initial ultrafast relaxation in methylammonium lead iodide perovskite. Scientific Reports, 8, 8115. (doi:10.1038/s41598-018-26207-9) (PMID:29802309) (PMCID:PMC5970208)

Ziessel, R., Stachelek, P., Harriman, A., Hedley, G. J. , Roland, T., Ruseckas, A. and Samuel, I. D. W. (2018) Ultrafast through-space electronic energy transfer in molecular dyads built around dynamic spacer units. Journal of Physical Chemistry A, 122(18), pp. 4437-4447. (doi:10.1021/acs.jpca.8b02415) (PMID:29664635)

2017

Ni, C. et al. (2017) Charge carrier localised in zero-dimensional (CH3NH3)3Bi2I9 clusters. Nature Communications, 8(1), (doi:10.1038/s41467-017-00261-9) (PMID:28761100) (PMCID:PMC5537240)

Hedley, G. J. , Steiner, F., Vogelsang, J. and Lupton, J. M. (2017) Determining the true optical gap in a high-performance organic photovoltaic polymer using single-molecule spectroscopy. Journal of Physical Chemistry Letters, 8(15), pp. 3494-3499. (doi:10.1021/acs.jpclett.7b01363) (PMID:28696123) (PMCID:28696123)

Yang, Y. et al. (2017) Emergent properties of an organic semiconductor driven by its molecular chirality. ACS Nano, 11(8), pp. 8329-8338. (doi:10.1021/acsnano.7b03540) (PMID:28696680)

Vithanage, D. A., Matheson, A. B., Pranculis, V., Hedley, G. J. , Pearson, S. J., Gulbinas, V., Samuel, I. D.W. and Ruseckas, A. (2017) Barrierless slow dissociation of photogenerated charge pairs in high-performance polymer–fullerene solar cells. Journal of Physical Chemistry C, 121(26), pp. 14060-14065. (doi:10.1021/acs.jpcc.7b04868)

Long, Y., Hedley, G. , Ruseckas, A., Chowdhury, M., Roland, T., Serrano, L. A., Cooke, G. and Samuel, I. D.W. (2017) Effect of annealing on exciton diffusion in a high performance small molecule organic photovoltaic material. ACS Applied Materials and Interfaces, 9(17), pp. 14945-14952. (doi:10.1021/acsami.6b16487) (PMID:28358189) (PMCID:PMC5423077)

Wiebeler, C., Plasser, F., Hedley, G. J. , Ruseckas, A., Samuel, I. D. W. and Schumacher, S. (2017) Ultrafast electronic energy transfer in an orthogonal molecular dyad. Journal of Physical Chemistry Letters, 8(5), pp. 1086-1092. (doi:10.1021/acs.jpclett.7b00089) (PMID:28206765)

2016

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2016) Light harvesting for organic photovoltaics. Chemical Reviews, 117(2), pp. 796-837. (doi:10.1021/acs.chemrev.6b00215) (PMID:27951633) (PMCID:PMC5269644)

Whitworth, G. L., Harwell, J. R., Miller, D. N., Hedley, G. J. , Zhang, W., Snaith, H. J., Turnbull, G. A. and Samuel, I. D.W. (2016) Nanoimprinted distributed feedback lasers of solution processed hybrid perovskites. Optics Express, 24(21), 23677. (doi:10.1364/OE.24.023677) (PMID:27828204)

Rota Martir, D. et al. (2016) Exploring the self-assembly and energy transfer of dynamic supramolecular iridium-porphyrin systems. Dalton Transactions, 45(43), pp. 17195-17205. (doi:10.1039/C6DT02619B) (PMID:27722693)

Denis, J.-C., Ruseckas, A., Hedley, G. J. , Matheson, A. B., Paterson, M. J., Turnbull, G. A., Samuel, I. D.W. and Galbraith, I. (2016) Self-trapping and excited state absorption in fluorene homo-polymer and copolymers with benzothiadiazole and tri-phenylamine. Physical Chemistry Chemical Physics, 18(31), pp. 21937-21948. (doi:10.1039/C6CP02059C) (PMID:27439750)

Pranculis, V., Ruseckas, A., Vithanage, D. A., Hedley, G. J. , Samuel, I. D.W. and Gulbinas, V. (2016) Influence of blend ratio and processing additive on free carrier yield and mobility in PTB7:PC71BM photovoltaic solar cells. Journal of Physical Chemistry C, 120(18), pp. 9588-9594. (doi:10.1021/acs.jpcc.6b01548) (PMID:27293495) (PMCID:PMC4897731)

Bergmann, L., Hedley, G. J. , Baumann, T., Brase, S. and Samuel, I. D.W. (2016) Direct observation of intersystem crossing in a thermally activated delayed fluorescence copper complex in the solid state. Science Advances, 2(1), e1500889. (doi:10.1126/sciadv.1500889) (PMID:26767194) (PMCID:PMC4705038)

2015

Hedley, G. J. , Ruseckas, A., Benniston, A. C., Harriman, A. and Samuel, I. D.W. (2015) Ultrafast electronic energy transfer beyond the weak coupling limit in a proximal but orthogonal molecular dyad. Journal of Physical Chemistry A, 119(51), pp. 12665-12671. (doi:10.1021/acs.jpca.5b08640) (PMID:26617059)

Alekseev, A. , Hedley, G. J. , AlAfeef, A., Ageev, O. A. and Samuel, I. (2015) Morphology and local electrical properties of PTB7:PC71BM blends. Journal of Materials Chemistry A, 3, pp. 8706-8714. (doi:10.1039/C5TA01224D)

Denis, J.-C. et al. (2015) Subpicosecond exciton dynamics in polyfluorene films from experiment and microscopic theory. Journal of Physical Chemistry C, 119(18), pp. 9734-9744. (doi:10.1021/acs.jpcc.5b00680)

Wong, M. Y., Hedley, G. J. , Xie, G., Kölln, L. S., Samuel, I. D. W., Pertegás, A., Bolink, H. J. and Zysman-Colman, E. (2015) Light-emitting electrochemical cells and solution-processed organic light-emitting diodes using small molecule organic thermally activated delayed fluorescence emitters. Chemistry of Materials, 27(19), pp. 6535-6542. (doi:10.1021/acs.chemmater.5b03245)

2014

Quinn, S. D.. , Dalgarno, P. A., Cameron, R. T., Hedley, G. J. , Hacker, C., Lucocq, J. M., Baillie, G. S. , Samuel, I. D.W. and Penedo, J. C. (2014) Real-time probing of β-amyloid self-assembly and inhibition using fluorescence self-quenching between neighbouring dyes. Molecular BioSystems, 10(1), p. 34. (doi:10.1039/c3mb70272c) (PMID:24170094)

2013

Quinn, S. D. , Deas, L. A., Dalgarno, P. A., Hedley, G. J. , Samuel, I. D.W. and Penedo, C. (2013) Solubilisation of lipid membranes by detergents: probing the three-state model at the single vesicle level. Biophysical Journal, 104(2), 174a. (doi:10.1016/j.bpj.2012.11.979)

Hedley, G. J. , Ward, A. J., Alekseev, A. , Howells, C. T., Martins, E. R., Serrano, L. A., Cooke, G. , Ruseckas, A. and Samuel, I. D.W. (2013) Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells. Nature Communications, 4, 2867. (doi:10.1038/ncomms3867) (PMID:24343223) (PMCID:PMC3905772)

2012

Montgomery, N. A., Hedley, G. J. , Ruseckas, A., Denis, J.-C., Schumacher, S., Kanibolotsky, A. L., Skabara, P. J., Galbraith, I., Turnbull, G. A. and Samuel, I. D.W. (2012) Dynamics of fluorescence depolarisation in star-shaped oligofluorene-truxene molecules. Physical Chemistry Chemical Physics, 14(25), p. 9176. (doi:10.1039/C2CP24141B) (PMID:22641238)

2011

Hedley, G. J. , Ruseckas, A., Harriman, A. and Samuel, I. D.W. (2011) Conformational effects on the dynamics of internal conversion in boron dipyrromethene dyes in solution. Angewandte Chemie (International Edition), 50(29), pp. 6634-6637. (doi:10.1002/anie.201101219) (PMID:21671319)

2010

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2010) Vibrational energy flow controls internal conversion in a transition metal complex. Journal of Physical Chemistry A, 114(34), pp. 8961-8968. (doi:10.1021/jp101087v) (PMID:20690629)

2009

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2009) Ultrafast intersystem crossing in a red phosphorescent iridium complex. Journal of Physical Chemistry A, 113(1), pp. 2-4. (doi:10.1021/jp808944n) (PMID:19072547)

2008

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2008) Ultrafast luminescence in Ir(ppy)3. Chemical Physics Letters, 450(4-6), pp. 292-296. (doi:10.1016/j.cplett.2007.11.028)

Hedley, G. J. , Ruseckas, A., Liu, Z., Lo, S.-C., Burn, P. L. and Samuel, I. D.W. (2008) Iridium metal complexes as an unambiguous probe of intramolecular vibrational redistribution. Journal of the American Chemical Society, 130(36), pp. 11842-11843. (doi:10.1021/ja8036383) (PMID:18700759)

2006

Dias, F. B., Pollock, S., Hedley, G. , Pålsson, L.-O., Monkman, A., Perepichka, I. I., Perepichka, I. F., Tavasli, M. and Bryce, M. R. (2006) Intramolecular charge transfer assisted by conformational changes in the excited state of fluorene-dibenzothiophene-S,S-dioxide co-oligomers. Journal of Physical Chemistry B, 110(39), pp. 19329-19339. (doi:10.1021/jp0643653) (PMID:17004789)

This list was generated on Thu Jul 18 15:35:59 2019 BST.
Jump to: Articles
Number of items: 30.

Articles

Scanlan, K., Kanibolotskyy, A. L., Breig, B., Hedley, G. J. and Skabara, P. J. (2019) Tetrathiafulvalene-oligofluorene star-shaped systems: new semiconductor materials for fluorescent moisture indicators. Journal of Materials Chemistry C, 7, pp. 6582-6591. (doi:10.1039/C9TC00845D)

Hedley, G. J. , Steiner, F., Vogelsang, J. and Lupton, J. M. (2018) Fluctuations in the emission polarization and spectrum in single chains of a common conjugated polymer for organic photovoltaics. Small, (Accepted for Publication)

Hedley, G. J. , Quarti, C., Harwell, J., Prezhdo, O. V., Beljonne, D. and Samuel, I. D. W. (2018) Hot-hole cooling controls the initial ultrafast relaxation in methylammonium lead iodide perovskite. Scientific Reports, 8, 8115. (doi:10.1038/s41598-018-26207-9) (PMID:29802309) (PMCID:PMC5970208)

Ziessel, R., Stachelek, P., Harriman, A., Hedley, G. J. , Roland, T., Ruseckas, A. and Samuel, I. D. W. (2018) Ultrafast through-space electronic energy transfer in molecular dyads built around dynamic spacer units. Journal of Physical Chemistry A, 122(18), pp. 4437-4447. (doi:10.1021/acs.jpca.8b02415) (PMID:29664635)

Ni, C. et al. (2017) Charge carrier localised in zero-dimensional (CH3NH3)3Bi2I9 clusters. Nature Communications, 8(1), (doi:10.1038/s41467-017-00261-9) (PMID:28761100) (PMCID:PMC5537240)

Hedley, G. J. , Steiner, F., Vogelsang, J. and Lupton, J. M. (2017) Determining the true optical gap in a high-performance organic photovoltaic polymer using single-molecule spectroscopy. Journal of Physical Chemistry Letters, 8(15), pp. 3494-3499. (doi:10.1021/acs.jpclett.7b01363) (PMID:28696123) (PMCID:28696123)

Yang, Y. et al. (2017) Emergent properties of an organic semiconductor driven by its molecular chirality. ACS Nano, 11(8), pp. 8329-8338. (doi:10.1021/acsnano.7b03540) (PMID:28696680)

Vithanage, D. A., Matheson, A. B., Pranculis, V., Hedley, G. J. , Pearson, S. J., Gulbinas, V., Samuel, I. D.W. and Ruseckas, A. (2017) Barrierless slow dissociation of photogenerated charge pairs in high-performance polymer–fullerene solar cells. Journal of Physical Chemistry C, 121(26), pp. 14060-14065. (doi:10.1021/acs.jpcc.7b04868)

Long, Y., Hedley, G. , Ruseckas, A., Chowdhury, M., Roland, T., Serrano, L. A., Cooke, G. and Samuel, I. D.W. (2017) Effect of annealing on exciton diffusion in a high performance small molecule organic photovoltaic material. ACS Applied Materials and Interfaces, 9(17), pp. 14945-14952. (doi:10.1021/acsami.6b16487) (PMID:28358189) (PMCID:PMC5423077)

Wiebeler, C., Plasser, F., Hedley, G. J. , Ruseckas, A., Samuel, I. D. W. and Schumacher, S. (2017) Ultrafast electronic energy transfer in an orthogonal molecular dyad. Journal of Physical Chemistry Letters, 8(5), pp. 1086-1092. (doi:10.1021/acs.jpclett.7b00089) (PMID:28206765)

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2016) Light harvesting for organic photovoltaics. Chemical Reviews, 117(2), pp. 796-837. (doi:10.1021/acs.chemrev.6b00215) (PMID:27951633) (PMCID:PMC5269644)

Whitworth, G. L., Harwell, J. R., Miller, D. N., Hedley, G. J. , Zhang, W., Snaith, H. J., Turnbull, G. A. and Samuel, I. D.W. (2016) Nanoimprinted distributed feedback lasers of solution processed hybrid perovskites. Optics Express, 24(21), 23677. (doi:10.1364/OE.24.023677) (PMID:27828204)

Rota Martir, D. et al. (2016) Exploring the self-assembly and energy transfer of dynamic supramolecular iridium-porphyrin systems. Dalton Transactions, 45(43), pp. 17195-17205. (doi:10.1039/C6DT02619B) (PMID:27722693)

Denis, J.-C., Ruseckas, A., Hedley, G. J. , Matheson, A. B., Paterson, M. J., Turnbull, G. A., Samuel, I. D.W. and Galbraith, I. (2016) Self-trapping and excited state absorption in fluorene homo-polymer and copolymers with benzothiadiazole and tri-phenylamine. Physical Chemistry Chemical Physics, 18(31), pp. 21937-21948. (doi:10.1039/C6CP02059C) (PMID:27439750)

Pranculis, V., Ruseckas, A., Vithanage, D. A., Hedley, G. J. , Samuel, I. D.W. and Gulbinas, V. (2016) Influence of blend ratio and processing additive on free carrier yield and mobility in PTB7:PC71BM photovoltaic solar cells. Journal of Physical Chemistry C, 120(18), pp. 9588-9594. (doi:10.1021/acs.jpcc.6b01548) (PMID:27293495) (PMCID:PMC4897731)

Bergmann, L., Hedley, G. J. , Baumann, T., Brase, S. and Samuel, I. D.W. (2016) Direct observation of intersystem crossing in a thermally activated delayed fluorescence copper complex in the solid state. Science Advances, 2(1), e1500889. (doi:10.1126/sciadv.1500889) (PMID:26767194) (PMCID:PMC4705038)

Hedley, G. J. , Ruseckas, A., Benniston, A. C., Harriman, A. and Samuel, I. D.W. (2015) Ultrafast electronic energy transfer beyond the weak coupling limit in a proximal but orthogonal molecular dyad. Journal of Physical Chemistry A, 119(51), pp. 12665-12671. (doi:10.1021/acs.jpca.5b08640) (PMID:26617059)

Alekseev, A. , Hedley, G. J. , AlAfeef, A., Ageev, O. A. and Samuel, I. (2015) Morphology and local electrical properties of PTB7:PC71BM blends. Journal of Materials Chemistry A, 3, pp. 8706-8714. (doi:10.1039/C5TA01224D)

Denis, J.-C. et al. (2015) Subpicosecond exciton dynamics in polyfluorene films from experiment and microscopic theory. Journal of Physical Chemistry C, 119(18), pp. 9734-9744. (doi:10.1021/acs.jpcc.5b00680)

Wong, M. Y., Hedley, G. J. , Xie, G., Kölln, L. S., Samuel, I. D. W., Pertegás, A., Bolink, H. J. and Zysman-Colman, E. (2015) Light-emitting electrochemical cells and solution-processed organic light-emitting diodes using small molecule organic thermally activated delayed fluorescence emitters. Chemistry of Materials, 27(19), pp. 6535-6542. (doi:10.1021/acs.chemmater.5b03245)

Quinn, S. D.. , Dalgarno, P. A., Cameron, R. T., Hedley, G. J. , Hacker, C., Lucocq, J. M., Baillie, G. S. , Samuel, I. D.W. and Penedo, J. C. (2014) Real-time probing of β-amyloid self-assembly and inhibition using fluorescence self-quenching between neighbouring dyes. Molecular BioSystems, 10(1), p. 34. (doi:10.1039/c3mb70272c) (PMID:24170094)

Quinn, S. D. , Deas, L. A., Dalgarno, P. A., Hedley, G. J. , Samuel, I. D.W. and Penedo, C. (2013) Solubilisation of lipid membranes by detergents: probing the three-state model at the single vesicle level. Biophysical Journal, 104(2), 174a. (doi:10.1016/j.bpj.2012.11.979)

Hedley, G. J. , Ward, A. J., Alekseev, A. , Howells, C. T., Martins, E. R., Serrano, L. A., Cooke, G. , Ruseckas, A. and Samuel, I. D.W. (2013) Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells. Nature Communications, 4, 2867. (doi:10.1038/ncomms3867) (PMID:24343223) (PMCID:PMC3905772)

Montgomery, N. A., Hedley, G. J. , Ruseckas, A., Denis, J.-C., Schumacher, S., Kanibolotsky, A. L., Skabara, P. J., Galbraith, I., Turnbull, G. A. and Samuel, I. D.W. (2012) Dynamics of fluorescence depolarisation in star-shaped oligofluorene-truxene molecules. Physical Chemistry Chemical Physics, 14(25), p. 9176. (doi:10.1039/C2CP24141B) (PMID:22641238)

Hedley, G. J. , Ruseckas, A., Harriman, A. and Samuel, I. D.W. (2011) Conformational effects on the dynamics of internal conversion in boron dipyrromethene dyes in solution. Angewandte Chemie (International Edition), 50(29), pp. 6634-6637. (doi:10.1002/anie.201101219) (PMID:21671319)

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2010) Vibrational energy flow controls internal conversion in a transition metal complex. Journal of Physical Chemistry A, 114(34), pp. 8961-8968. (doi:10.1021/jp101087v) (PMID:20690629)

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2009) Ultrafast intersystem crossing in a red phosphorescent iridium complex. Journal of Physical Chemistry A, 113(1), pp. 2-4. (doi:10.1021/jp808944n) (PMID:19072547)

Hedley, G. J. , Ruseckas, A. and Samuel, I. D.W. (2008) Ultrafast luminescence in Ir(ppy)3. Chemical Physics Letters, 450(4-6), pp. 292-296. (doi:10.1016/j.cplett.2007.11.028)

Hedley, G. J. , Ruseckas, A., Liu, Z., Lo, S.-C., Burn, P. L. and Samuel, I. D.W. (2008) Iridium metal complexes as an unambiguous probe of intramolecular vibrational redistribution. Journal of the American Chemical Society, 130(36), pp. 11842-11843. (doi:10.1021/ja8036383) (PMID:18700759)

Dias, F. B., Pollock, S., Hedley, G. , Pålsson, L.-O., Monkman, A., Perepichka, I. I., Perepichka, I. F., Tavasli, M. and Bryce, M. R. (2006) Intramolecular charge transfer assisted by conformational changes in the excited state of fluorene-dibenzothiophene-S,S-dioxide co-oligomers. Journal of Physical Chemistry B, 110(39), pp. 19329-19339. (doi:10.1021/jp0643653) (PMID:17004789)

This list was generated on Thu Jul 18 15:35:59 2019 BST.