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
- Shikha Rani Barik
- Olga Filippova
- Madeleine Fisher
- Masato Kato
- Chico Paulics Bresler
- Benedict Paulukiewicz
- Egle Tankeleviciute
- Kaiyang Wei
- Yuchen Zhang
Selected publications
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Open access
Absolute calibration for cyclic voltammetry from the solution-phase ionisation of ferrocene
Baikie, T. K., Harwell, J. R., Baikie, I. D., Zysman-Colman, E., Samuel, I. D. W. & Turnbull, G. A., 20 Jan 2026, (E-pub ahead of print) In: ACS Electrochemistry. ASAP, 8 p.Research output: Contribution to journal › Article › peer-review
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Open access
Analysis and control of untemplated DNA polymerase activity for guided synthesis of kilobase-scale DNA sequences
Castle, S. D., Irvine, T. C. T., Woolfson, A., Linshiz, G., Riley, B. T., Samuel, I. D. W., Picco, L., Holliger, P., Oldfield, L. M., Hessel, A. & Gorochowski, T. E., 26 Feb 2026, In: Nature Communications. 17, p. 1-18 18 p., 3251.Research output: Contribution to journal › Article › peer-review
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Open access
A trade-off between efficiency and stability in a class of sky-blue organic light-emitting diodes
Tankelevičiūtė, E., Jenatsch, S., Ruhstaller, B., Zysman-Colman, E. & Samuel, I. D. W., 1 Mar 2026, In: FlexMat. 3, 1, p. 20-28 9 p.Research output: Contribution to journal › Article › peer-review
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Open access
Corrigendum to "Photodynamic therapy offers a novel approach to managing miltefosine-resistant cutaneous leishmaniasis" [Biomed. Pharmacother. 177 (2024) 116881]
Cabral, F. V., Riahi, M., Persheyev, S., Lian, C., Cortez, M., Samuel, I. D. W. & Ribeiro, M. S., 22 May 2026, (E-pub ahead of print) In: Biomedicine & Pharmacotherapy. In Press, p. 1-2 2 p., 119495.Research output: Contribution to journal › Article › peer-review
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Open access
Interaction of polymer of intrinsic microporosity PIM-1 with explosive analytes at the molecular level: combined experiment and computational modeling
Mohammed, S., Ogugu, E. B., Sharma, R., Taylor, D., Cooke, G., McKeown, N. B., Baryshnikov, G., Ågren, H., Samuel, I. D. W. & Turnbull, G. A., 18 Apr 2026, (E-pub ahead of print) In: Journal of Physical Chemistry C. ASAP, 8 p.Research output: Contribution to journal › Article › peer-review
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Open access
Intramolecular through-space heavy-atom effect in multiresonant thermally activated delayed fluorescence emitters with [2.2]paracyclophane
Xu, Y., Hafeez, H., Wang, W., Samuel, I. D. W. & Zysman-Colman, E., 13 May 2026, (E-pub ahead of print) In: Organic Chemistry Frontiers. Advance article, 10 p.Research output: Contribution to journal › Article › peer-review
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Open access
Novel optical measurement technique for antimicrobial photodynamic therapy using Scattered Light Integrating Collector (SLIC)
Leite De Avellar, M., Hafeez, H., Hammond, R. & Samuel, I. D. W., 14 Jan 2026, In: Scientific Reports. 16, p. 1-8 8 p., 4040.Research output: Contribution to journal › Article › peer-review
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Open access
OLED-based photodynamic therapy treats bacterial infection in a preclinical ex vivo burn wound model.
De Maesschalck, V., Riahi, M., Lavigne, R., Velde, G. V. & Samuel, I. D. W., 29 Jun 2026, In: Burns & Trauma. 14, 3 p., tkag024.Research output: Contribution to journal › Letter › peer-review
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Open access
Optical sensor for seizure detection
Campbell, I. A., McDermott, J. A., Turnbull, G. A. & Samuel, I. D. W., 5 Mar 2026, Biophotonics in exercise science, sports medicine, health monitoring technologies, and wearables VII. Shadgan, B. & Gandjbakhche, A. H. (eds.). Bellingham, WA: SPIE, 6 p. 138450A. (Proceedings of SPIE; vol. 13845).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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Open access
Photoluminescence turn-on method to determine the kinetics of thermally activated delayed fluorescence materials
Diesing, S., Yoshida, K., Zysman-Colman, E. & Samuel, I. D. W., 11 Feb 2026, (E-pub ahead of print) In: Advanced Physics Research. Early View, 9 p., e00212.Research output: Contribution to journal › Article › peer-review