Prof. Ifor Samuel

- Position:
-
Professor
- Research Theme:
- Condensed Matter and Photonics
- Research Group:
- Photonics
- Institution:
- St. Andrews
- Email address:
- idws@st-andrews.ac.uk
- Website:
- http://www.st-andrews.ac.uk/~www_pa/PHP_Global/Staff_Info.php?id=70
- Telephone number:
- +44 (0)1334 463114
- Address:
- 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
- Preconcentration techniques for trace explosive sensing DOI, Science of the Total Environment, 658, p. 650-658 (2019)
- Hole delocalization as a driving force for charge pair dissociation in organic photovoltaics DOI, Materials Horizons, Advance Article (2019)
- Correction DOI, Advanced Materials, 30, 51 (2018)
- Monothiatruxene-based, solution-processed green, sky-blue, and deep-blue organic light-emitting diodes with efficiencies beyond 5% limit DOI, Advanced Functional Materials, Early View (2018)
- High efficiency deep blue-emitting organic light emitting diodes based on iridium(III) carbene complexes DOI, Advanced Materials, 30, 50 (2018)
- Tuning the exciton diffusion coefficient of polyfluorene based semiconducting polymers DOI, Physica Status Solidi - Rapid Research Letters, Early View (2018)
- 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, RSC Advances, 8, 69 , p. 39231-39240 (2018)
- Transfer-printed micro-LED and polymer-based transceiver for visible light communications DOI, Optics Express, 26, 24 , p. 31474-31483 (2018)
- Deep blue oxadiazole-containing thermally activated delayed fluorescence emitters for organic light-emitting diodes DOI, Applied Materials & Interfaces, In press (2018)
- Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells DOI, Journal of Materials Chemistry A, 6, 33 , p. 16012-16028 (2018)