Research areas
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.
PhD supervision
- Peter Brown
- David Webster
- Mina Riahi
- Marianna Leite De Avellar
- Egle Tankeleviciute
- Thomas Sayner
- Liam King
Selected publications
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Open access
A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes
Madayanad Suresh, S., Zhang, L., Hall, D., Si, C., Ricci, G., Matulaitis, T., Slawin, A. M. Z., Warriner, S., Olivier, Y., Samuel, I. D. & Zysman-Colman, E., 13 Feb 2023, In: Angewandte Chemie International Edition. 62, 8, 8 p., e202215522.Research output: Contribution to journal › Article › peer-review
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Achieving bright organic light emitting field effect transistors with sustained efficiency through hybrid contact design
Chiu, S., Hsu, A., Ying, L., Liaw, Y-K., Lin, K-T., Ruan, J., Samuel, I. D. W. & Hsu, B., 28 Jun 2023, In: ACS Applied Materials & Interfaces. 15, 25, p. 30524–30533 10 p.Research output: Contribution to journal › Article › peer-review
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Open access
Bulky iridium NHC complexes for bright, efficient deep-blue OLEDs
Mackenzie, C. F. R., Zhang, L., Cordes, D. B., Slawin, A. M. Z., Samuel, I. D. W. & Zysman-Colman, E., 18 Jan 2023, In: Advanced Optical Materials. 11, 2, 14 p., 2201495.Research output: Contribution to journal › Article › peer-review
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Open access
Chlorine retention enables the indoor light harvesting of triple halide wide bandgap perovskites
Wang, S., Edwards, P. R., Abdelsamie, M., Brown, P., Webster, D., Ruseckas, A., Rajan, G., Neves, A. I. S., Martin, R. W., Sutter-Fella, C. M., Turnbull, G. A., Samuel, I. D. W. & Jagadamma, L. K., 21 Jun 2023, In: Journal of Materials Chemistry A. 11, 23, p. 12328-12341 14 p.Research output: Contribution to journal › Article › peer-review
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Open access
Distinguishing electron diffusion and extraction in methylammonium lead iodide
Brown, P., Ruseckas, A., Krishnan Jagadamma, L., Blaszczyk, O., Harwell, J. R., Mica, N. A., Zysman-Colman, E. & Samuel, I. D. W., 21 Mar 2023, (E-pub ahead of print) In: The Journal of Physical Chemistry Letters. 14, p. 3007–3013 7 p.Research output: Contribution to journal › Article › peer-review
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Open access
Dominance of photo over chromatic acclimation strategies by habitat-forming mesophotic red algae
Voerman, S. E., Marsh, B. C., Bahia, R. G., Pereira-Filho, G. H., Becker, A. C. F., Amado-Filho, G. M., Ruseckas, A., Turnbull, G. A., Samuel, I. D. W. & Burdett, H. L., 11 Oct 2023, In: Proceedings of the Royal Society B: Biological Sciences. 290, 2008Research output: Contribution to journal › Article › peer-review
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Open access
Donor influence on the optoelectronic properties of N-substituted tetraphenylimidazole derivatives
Matulaitis, T., dos Santos, P. L., Tsuchiya, Y., Cordes, D. B., Slawin, A. M. Z., Adachi, C., Samuel, I. D. W. & Zysman-Colman, E., 6 Mar 2023, In: ChemistrySelect. 8, 9, 10 p., e202300274.Research output: Contribution to journal › Article › peer-review
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Open access
Electrically driven organic laser using integrated OLED pumping
Yoshida, K., Gong, J., Kanibolotsky, A. L., Skabara, P. J., Turnbull, G. & Samuel, I. D. W., 28 Sept 2023, In: Nature. 621, p. 746-752Research output: Contribution to journal › Article › peer-review
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Open access
Enhanced photoluminescence and reduced dimensionality via vacancy ordering in a 10H halide perovskite
Liu, H., Hafeez, H., Cordes, D. B., Slawin, A. M. Z., Peters, G., Lee, S., Samuel, I. D. W. & Morrison, F. D., 13 Feb 2023, (E-pub ahead of print) In: Inorganic Chemistry. 8 p.Research output: Contribution to journal › Article › peer-review
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Evaluation of dual application of Photodynamic Therapy - PDT in Candida albicans
Nunes, I. P. F., Crugeira, P. J. L., Sampaio, F. J. P., de Oliveira, S. C. P. S., Azevedo, J. M., Santos, C. L. O., Soares, L. G. P., Samuel, I. D. W., Persheyev, S., de Ameida, P. F. & Pinheiro, A. L. B., 1 Jun 2023, In: Photodiagnosis and Photodynamic Therapy. 42, 10 p., 103327.Research output: Contribution to journal › Article › peer-review