Assist. Prof. Dr. Filiz Keleş | Materials Science | Best Researcher Award
Niğde Ömer Halisdemir University | Turkey
Assist. Prof. Dr. Filiz Keleş is a dedicated materials physicist whose research spans semiconductor nanostructures, thin films, and next-generation photovoltaic and optoelectronic devices, contributing to the advancement of sustainable energy and nanotechnology-driven applications. Her expertise integrates experimental thin-film deposition, nanorod-based device engineering, optical modeling, and semiconductor characterization, with a particular focus on GaN, Si, InGaN, CIGS, and perovskite systems that hold transformative potential for high-performance photodetectors and solar-energy technologies. Dr. Keleş has authored 13 peer-reviewed research papers, accumulating 73 citations and an h-index of 6, demonstrating a steadily growing scientific influence in solid-state physics and thin-film technology. She has contributed to multiple national-scale R&D projects, including TÜBİTAK-supported programs on CIGS thin-film development, monolithic tandem solar cells, and silicon purification, reflecting her ability to bridge fundamental physics with industrially relevant innovation. Her patent on flexible CIGS/perovskite tandem devices underscores her commitment to translating laboratory research into scalable, real-world solutions aligned with global clean-energy priorities. Beyond her research output, Dr. Keleş has collaborated with interdisciplinary teams across materials science, chemistry, and electrical engineering, fostering knowledge exchange and strengthening the scientific community’s understanding of advanced semiconductor processes. She actively contributes to academic development through teaching responsibilities in physics and materials science and the supervision of graduate research on optoelectronic device design and thin-film engineering. Her work carries meaningful societal impact by addressing key challenges in energy efficiency, device sustainability, and nanomaterial integration, supporting broader global objectives toward renewable energy transition and green-technology innovation. With a strong research portfolio, evolving citation impact, and clear scientific vision, Dr. Keleş continues to advance the frontier of semiconductor physics and remains positioned as a promising contributor to future breakthroughs in high-efficiency, low-cost photovoltaic and optoelectronic systems.
Featured Publications
Cansizoglu, M. F., Hamad, S. M., Norman, D. P., Keles, F., Badraddin, E., … (2015). PiN InGaN nanorod solar cells with high short-circuit current. Applied Physics Express, 8(4), 042302.
Keles, F., Cansizoglu, H., Badraddin, E. O., Brozak, M. P., Watanabe, F., … (2016). HIPS-GLAD core–shell nanorod array photodetectors with enhanced photocurrent and reduced dark current. Materials Research Express, 3(10), 105028.
Badradeen, E., Brozak, M., Keles, F., Al-Mayalee, K., & Karabacak, T. (2017). High performance flexible copper indium gallium selenide core–shell nanorod array photodetectors. Journal of Vacuum Science & Technology A, 35(3).
Keles, F., Cansizoglu, H., Brozak, M., Badraddin, E., & Karabacak, T. (2016). Conformal core–shell nanostructured photodetectors with enhanced photoresponsivity by high-pressure sputter deposition. MRS Advances, 1(28), 2045–2050.
Hamad, S. M., Norman, D. P., Chen, Q. Y., Keles, F., & Seo, H. W. (2013). Competitive In and Ga incorporations for InxGa1−xN (0.29 < x < 0.36) nanorods grown at a moderate temperature. AIP Advances, 3(7).
