Prof. Ifor Samuel

Research Theme:
Condensed Matter and Photonics
Research Group:
St. Andrews
Email address:
Telephone number:
+44 (0)1334 463114
School of Physics & Astronomy, Physical Science Building, North Haugh, St Andrews, KY16 9SS, United Kingdom

Research interests

Polymer optoelectronics.

Most polymers, or plastics, are electrical insulators. However there is one class of polymers, known as 'conjugated' polymers which can conduct electricity. These materials are semiconductors, and open new directions in optoelectronics. They combine novel semiconducting electronic properties with the processing flexibility of polymers. When a voltage is applied to them, they emit light, providing an important new display technology that could give flat and even flexible displays. Semiconducting polymers can be used to make field effect transistors, solar cells, and even lasers. In the polymer optoelectronics group we seek to understand the physics of these remarkable materials and devices, with the aim of improving them. The research has both fundamental and applied aspects, and the main activities are: - optical amplifiers - wavelength scale microstructure - new materials - charge transport in LEDs - understanding the light emission process

I am also researching fluorescence and its applications in medicine and biology.

For further information, see the Organic Semiconductor Centre and the Polymer Optoelectronics group website.

Research outputs

  1. Preconcentration techniques for trace explosive sensing DOI
    Ross N. Gillanders, James M. E. Glackin, Janja Filipi, Nikola Kezic, Ifor D W. Samuel and Graham A. Turnbull, Science of the Total Environment, 658, p. 650-658 (2019)
  2. Hole delocalization as a driving force for charge pair dissociation in organic photovoltaics DOI
    Andrew B. Matheson, Arvydas Ruseckas, Scott J. Pearson and Ifor D. W. Samuel, Materials Horizons, Advance Article (2019)
  3. Correction DOI
    Amlan K. Pal, Simonas Krotkus, Mattia Fontani, Campbell F. R. Mackenzie, David B. Cordes, Alexandra M. Z. Slawin, Ifor D. W. Samuel and Eli Zysman-Colman, Advanced Materials, 30, 51 (2018)
  4. Monothiatruxene-based, solution-processed green, sky-blue, and deep-blue organic light-emitting diodes with efficiencies beyond 5% limit DOI
    Michal R. Maciejczyk, Shuyu Zhang, Gordon J. Hedley, Neil Robertson, Ifor D. W. Samuel and Marek Pietraszkiewicz, Advanced Functional Materials, Early View (2018)
  5. High efficiency deep blue-emitting organic light emitting diodes based on iridium(III) carbene complexes DOI
    Amlan K. Pal, Simonas Krotkus, Mattia Fontani, Campbell F. R. Mackenzie, David B. Cordes, Alexandra M. Z. Slawin, Ifor D. W. Samuel and Eli Zysman-Colman, Advanced Materials, 30, 50 (2018)
  6. Tuning the exciton diffusion coefficient of polyfluorene based semiconducting polymers DOI
    Muhammad T. Sajjad, Alexander J. Ward, Arvydas Ruseckas, Ashu K. Bansal, Sybille Allard, Ullrich Scherf and Ifor D. W. Samuel, Physica Status Solidi - Rapid Research Letters, Early View (2018)
  7. An investigation of the role acceptor side chains play in the processibility and efficiency of organic solar cells fabricated from small molecular donors featuring 3,4-ethylenedioxythiophene cores DOI
    Natalie Mica, S. A. J. Almahmoud, Lethy Krishnan Jagadamma, G. Cooke and Ifor David William Samuel, RSC Advances, 8, 69 , p. 39231-39240 (2018)
  8. Transfer-printed micro-LED and polymer-based transceiver for visible light communications DOI
    Katherine Rae, Pavlos Manousiadis, Mohamed Islim , Liang Yin, Jose Carreira, Jonathan McKendry, Benoit Guihabert, Ifor David William Samuel, Graham Alexander Turnbull, Nicolas Laurand et al., Optics Express, 26, 24 , p. 31474-31483 (2018)
  9. Deep blue oxadiazole-containing thermally activated delayed fluorescence emitters for organic light-emitting diodes DOI
    Michael Yin Wong, Simonas Krotkus, Graeme Copley, Wenbo Li, Caroline Murawski, David Hall, Gordon Hedley, Marie Jaricot, David B. Cordes, Alexandra M. Z. Slawin et al., Applied Materials & Interfaces, In press (2018)
  10. Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells DOI
    Calvyn T. Howells, Sueda Saylan, Haeri Kim, Khalid Marbou, Tetsua Aoyama, Aiko Nakao, Masanobu Uchiyama, Ifor D. W. Samuel, Dong Wook Kim, Marcus S. Dahlem et al., Journal of Materials Chemistry A, 6, 33 , p. 16012-16028 (2018)
Last updated: 17 Apr 2018 at 21:13