People

Current Members

Dr. Jean Charles Ribierre

Jean Charles has been appointed as a reader at the School of Physics and Astronomy of the University of St Andrews in January 2023. He obtained his PhD in 2002 from the University of Strasbourg in France, conducting research on the physics of photorefractive polymers under the supervision of Dr Alain Fort. After postdoctoral research experiences in organic optoelectronics at RIKEN in Japan and at the University of St Andrews, he joined as an assistant professor the department of Physics of Ewha Womans University in South Korea between 2010 and 2013. He was then appointed as an associate professor in the Center for Organic Photonics and Electronics Research (OPERA) of Prof Chihaya Adachi at Kyushu University, focusing his research activities on the development of high-efficiency near infrared TADF OLEDs and the realization of current injection organic laser diodes. He also has a strong experience in the translation of new technology with the creation of a startup company in Japan, KOALA Tech, of which he was the CEO between 2019 and 2022. His main research interests focus on the development and the physics of organic electronic materials and devices.

Email: jr43(at)st-andrews.ac.uk

Office: 205

Phone: +44 (0) 1334 463184

https://orcid.org/my-orcid?orcid=0000-0001-7288-3795

Junyi Gong

BSc & MSc – Fudan University

PhD – University of St Andrews

Junyi is from Shanghai, China and graduated from University of St Andrews in 2023 with a PhD in physics (Supervised by Prof. Ifor Samuel and Prof. Graham Turnbull). Junyi joined our group in January 2025 as a research fellow to work on the project ‘Effects of sub-wavelength photonic nanostructures on thermally activated delayed fluorescence’. His research mainly focuses on organic optoelectronic devices and underlying device and material physics.

Email: jg259(at)st-andrews.ac.uk

Saban Tosun

BSc – Hacettepe University

MSc – University of Bordeaux

MEng – Technical University of Darmstadt

Saban, originally from Türkiye, joined our group in September 2023 with a strong enthusiasm for technology and material science. His Ph.D. research focuses on exploring ‘The effects of sub-wavelength photonic nanostructures on thermally activated delayed fluorescence’. By exploring the interplay between advanced nanostructures and TADF mechanisms, Saban aims to contribute to the development of innovative solutions for OLED technologies.

Email: st293(at)st-andrews.ac.uk