Publications

Monothiatruxene‐Based, Solution‐Processed Green, Sky‐Blue, and Deep‐Blue Organic Light‐Emitting Diodes with Efficiencies Beyond 5% Limit

Michal R. Maciejczyk, Shuyu Zhang, Gordon J. Hedley, Neil Robertson, Ifor D. W. Samuel, Marek Pietraszkiewicz

Adcanced Functional Materials, 29, 6 (2019)

Published Online: 17 December 2018

10.1002/adfm.201807572




Fluctuations in the Emission Polarization and Spectrum in Single Chains of a Common Conjugated Polymer for Organic Photovoltaics

Gordon J. Hedley* , Florian Steiner, Jan Vogelsang and John M. Lupton

Small, 14, 51 (2018)

Published Online: 16 November 2018

10.1002/smll.201804312


Hot-Hole Cooling Controls the Initial Ultrafast Relaxation in Methylammonium Lead Iodide Perovskite

Gordon J. Hedley , Claudio Quarti, Jonathon Harwell, Oleg V. Prezhdo, David Beljonne and Ifor D. W. Samuel*

Scientific Reports, 8, 8115 (2018)

Published Online: 25 May 2018

10.1038/s41598-018-26207-9


Deep-Blue Oxadiazole-Containing Thermally Activated Delayed Fluorescence Emitters for Organic Light-Emitting Diodes

Michael Y. Wong , Simonas Krotkus, Graeme Copley, Wenbo Li, Caroline Murawski , David Hall, Gordon J. Hedley , Marie Jaricot, David B. Cordes, Alexandra M. Z. Slawin, Yoann Olivier, David Beljonne, Luca Muccioli , Monica Moral , Juan-Carlos Sancho-Garcia , Malte C. Gather , Ifor D. W. Samuel* and Eli Zysman-Colman*

ACS Applied Materials & Interfaces, 10, 39 (2018)

Published Online: 7 September 2018

10.1021/acsami.8b11136


Ultrafast Through-Space Electronic Energy Transfer in Molecular Dyads Built around Dynamic Spacer Units

Raymond Ziessel, Patrycja Stachelek, Anthony Harriman* , Gordon J. Hedley, Thomas Roland, Arvydas Ruseckas and Ifor D. W. Samuel*

Journal of Physical Chemistry A, 120, 18 (2018)

Published Online: 17 April 2018

10.1021/acs.jpca.8b02415




Determining the True Optical Gap in a High-Performance Organic Photovoltaic Polymer Using Single-Molecule Spectroscopy

Gordon J. Hedley* , Florian Steiner, Jan Vogelsang and John M. Lupton

Journal of Physical Chemistry Letters, 8, 15 (2017)

Published Online: 11 July 2017

10.1021/acs.jpclett.7b01363


Emergent Properties of an Organic Semiconductor Driven by its Molecular Chirality

Ying Yang, Beth Rice, Xingyuan Shi, Jochen R. Brandt, Rosenildo Correa da Costa, Gordon J. Hedley, Detlef-M. Smilgies, Jarvist M. Frost, Ifor. D. W. Samuel, Alberto Otero-de-la-Roza, Erin R. Johnson, Kim E. Jelfs, Jenny Nelson, Alasdair J. Campbell* and Matthew J. Fuchter*

ACS Nano, 11, 8 (2017)

Published Online: 11 July 2017

10.1021/acsnano.7b03540


Charge carrier localised in zero-dimensional (CH3NH3)3Bi2I9 clusters

Chengsheng Ni, Gordon Hedley, Julia Payne, Vladimir Svrcek, Calum McDonald, Lethy Krishnan Jagadamma, Paul Edwards, Robert Martin, Gunisha Jain, Darragh Carolan, Davide Mariotti, Paul Maguire, Ifor Samuel and John Irvine*

Nature Communications, 8, 170 (2017)

Published Online: 1 August 2017

10.1038/s41467-017-00261-9


Barrierless Slow Dissociation of Photogenerated Charge Pairs in High-Performance Polymer–Fullerene Solar Cells

Dimali A. Vithanage, Andrew B. Matheson, Vytenis Pranculis, Gordon J. Hedley, Scott J. Pearson, Vidmantas Gulbinas, Ifor D. W. Samuel and Arvydas Ruseckas*

Journal of Physical Chemistry C, 121, 26 (2017)

Published Online: 1 June 2017

10.1021/acs.jpcc.7b04868


Effect of Annealing on Exciton Diffusion in a High Performance Small Molecule Organic Photovoltaic Material

Yun Long, Gordon J. Hedley, Arvydas Ruseckas, Mithun Chowdhury, Thomas Roland, Luis A Serrano, Graeme Cooke and Ifor D. W. Samuel*

ACS Applied Materials & Interfaces, 9, 17 (2017)

Published Online: 30 March 2017

10.1021/acsami.6b16487


Ultrafast Electronic Energy Transfer in an Orthogonal Molecular Dyad

Christian Wiebeler, Felix Plasser, Gordon J. Hedley, Arvydas Ruseckas, Ifor D. W. Samuel and Stefan Schumacher*

Journal of Physical Chemistry Letters, 8, 5 (2017)

Published Online: 16 February 2017

10.1021/acs.jpclett.7b00089


Light Harvesting for Organic Photovoltaics

Gordon J. Hedley, Arvydas Ruseckas and Ifor D. W. Samuel*

Chemical Reviews, 117, 2 (2017)

Published Online: 7 December 2016

10.1021/acs.chemrev.6b00215



Nanoimprinted distributed feedback lasers of solution processed hybrid perovskites

Guy L. Whitworth, Jonathan R. Harwell, David N. Miller, Gordon J. Hedley, Wei Zhang, Henry J. Snaith, Graham A. Turnbull* and Ifor D. W. Samuel*

Optics Express, 24, 21 (2016)

Published Online: 3 October 2016

10.1364/OE.24.023677


Exploring the self-assembly and energy transfer of dynamic supramolecular iridium-porphyrin systems

Diego Rota Martir, Gordon J. Hedley, David B. Cordes, Alexandra M. Z. Slawin, Daniel Escudero, Denis Jacquemin, Tamara Kosikova, Douglas Philp, Daniel M. Dawson, Sharon E. Ashbrook, Ifor D. W. Samuel and Eli Zysman-Colman*

Dalton Transactions, 45, 43 (2016)

Published Online: 22 September 2016

10.1039/C6DT02619B


Self-trapping and excited state absorption in fluorene homo-polymer and copolymers with benzothiadiazole and tri-phenylamine

Jean-Christophe Denis, Arvydas Ruseckas, Gordon J. Hedley, Andrew B. Matheson, Martin J. Paterson, Graham A. Turnbull, Ifor D. W. Samuel* and Ian Galbraith*

Physical Chemistry Chemical Physics, 8, 31 (2016)

Published Online: 21 June 2016

10.1039/C6CP02059C


Influence of Blend Ratio and Processing Additive on Free Carrier Yield and Mobility in PTB7:PC71BM Photovoltaic Solar Cells

Vytenis Pranculis, Arvydas Ruseckas, Dimali A. Vithanage, Gordon J. Hedley, Ifor D. W. Samuel* and Vidmantas Gulbinas*

Journal of Physical Chemistry C, 120, 18 (2016)

Published Online: 22 April 2016

10.1021/acs.jpcc.6b01548


Direct observation of intersystem crossing in a thermally activated delayed fluorescence copper complex in the solid state

Larissa Bergmann, Gordon J. Hedley, Thomas Baumann, Stefan Bräse and Ifor D.W. Samuel*

Science Advances, 2, 1 (2016)

Published Online: 1 January 2016

10.1126/sciadv.1500889




Light-Emitting Electrochemical Cells and Solution-Processed Organic Light-Emitting Diodes Using Small Molecule Organic Thermally Activated Delayed Fluorescence Emitters

Michael Y. Wong, Gordon J. Hedley, Guohua Xie, Lisa S. Kölln, Ifor D. W. Samuel, Antonio Pertegás, Henk J. Bolink and Eli Zysman-Colman*

Chemistry of Materials, 27, 19 (2015)

Published Online: 14 September 2015

10.1021/acs.chemmater.5b03245


Ultrafast Electronic Energy Transfer Beyond the Weak Coupling Limit in a Proximal but Orthogonal Molecular Dyad

Gordon J. Hedley, Arvydas Ruseckas, Andrew C. Benniston, Anthony Harriman* and Ifor D. W. Samuel*

Journal of Physical Chemistry A, 119, 51 (2015)

Published Online: 28 November 2015

10.1021/acs.jpca.5b08640


Morphology and local electrical properties of PTB7:PC71BM blends

Alexander Alekseev, Gordon J. Hedley, Alaa Al-Afeef, Oleg A. Ageevd and Ifor D. W. Samuel*

Journal of Materials Chemistry A, 3, 16 (2015)

Published Online: 12 March 2015

10.1039/C5TA01224D


Subpicosecond Exciton Dynamics in Polyfluorene Films from Experiment and Microscopic Theory

Jean-Christophe Denis, Stefan Schumacher, Gordon J. Hedley, Arvydas Ruseckas, Paulina O. Morawska, Yue Wang, Sybille Allard, Ullrich Scherf, Graham A. Turnbull, Ifor D. W. Samuel* and Ian Galbraith*

Journal of Physical Chemistry C, 119, 18 (2015)

Published Online: 15 April 2015

10.1021/acs.jpcc.5b00680




Real-time probing of β-amyloid self-assembly and inhibition using fluorescence self-quenching between neighbouring dyes

Steven D. Quinn, Paul A. Dalgarno, Ryan T. Cameron, Gordon J. Hedley, Christian Hacker, John M. Lucocq, George S. Baillie, Ifor D. W. Samuel* and J. Carlos Penedo*

Molecular BioSystems, 10, 34 (2014)

Published Online: 22 October 2014

10.1039/C3MB70272C




Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells

Gordon J. Hedley, Alexander J. Ward, Alexander Alekseev, Calvyn T. Howells, Emiliano R. Martins, Luis A. Serrano, Graeme Cooke, Arvydas Ruseckas and Ifor D. W. Samuel*

Nature Communications, 4, 2867 (2013)

Published Online: 17 December 2013

10.1038/ncomms3867




Dynamics of fluorescence depolarisation in star-shaped oligofluorene-truxene molecules

Neil A. Montgomery, Gordon J. Hedley, Arvydas Ruseckas, Jean-Christophe Denis, Stefan Schumacher, Alexander L. Kanibolotsky, Peter J. Skabara, Ian Galbraith, Graham A. Turnbull and Ifor D. W. Samuel*

Physical Chemistry Chemical Physics, 14, 9176 (2012)

Published Online: 24 April 2012

10.1039/C2CP24141B




Conformational Effects on the Dynamics of Internal Conversion in Boron Dipyrromethene Dyes in Solution

Gordon J. Hedley, Arvydas Ruseckas, Anthony Harriman and Ifor D. W. Samuel*

Angewandte Chemie International Edition, 50, 29 (2011)

Published Online: 10 June 2011

10.1002/anie.201101219




Vibrational Energy Flow Controls Internal Conversion in a Transition Metal Complex

Gordon J. Hedley, Arvydas Ruseckas and Ifor D. W. Samuel*

Journal of Physical Chemistry A, 114, 34 (2010)

Published Online: 6 August 2010

10.1021/jp101087v




Ultrafast Intersystem Crossing in a Red Phosphorescent Iridium Complex

Gordon J. Hedley, Arvydas Ruseckas and Ifor D. W. Samuel*

Journal of Physical Chemistry A, 113, 2 (2009)

Published Online: 12 December 2008

10.1021/jp808944n




Iridium Metal Complexes as an Unambiguous Probe of Intramolecular Vibrational Redistribution

Gordon J. Hedley, Arvydas Ruseckas and Ifor D. W. Samuel*

Journal of the American Chemical Society, 130, 36 (2008)

Published Online: 14 August 2008

10.1021/ja8036383


Ultrafast luminescence in Ir(ppy)3

Gordon J. Hedley, Arvydas Ruseckas and Ifor D. W. Samuel*

Chemical Physics Letters, 450, 292 (2008)

Published Online: 19 November 2007

10.1016/j.cplett.2007.11.028




Intramolecular Charge Transfer Assisted by Conformational Changes in the Excited State of Fluorene-dibenzothiophene-S,S-dioxide Co-oligomers

Fernando B. Dias*, Sam Pollock, Gordon Hedley, Lars-Olof Pålsson and Andy Monkman

Journal of Physical Chemistry B, 110, 39 (2006)

Published Online: 2 September 2006

10.1021/jp0643653