时 间：2026年1月23日下午14：30
地 点：理工楼18号楼-307会议室
主 讲：Dr. Konstantin Kokh，首席研究员，俄罗斯新西伯利亚地质矿物研究所
主 办：光电与信息工程学院，医学光电科学与技术教育部重点实验室，福建省光子技术重点实验室
专家简介：Dr. Konstantin Kokh holds a PhD (2008) and Doctor of Sciences (DSc, 2022) in Earth Sciences. His research focuses on phase equilibria, crystal growth, and the functional properties of advanced materials. He has authored over 280 publications (h-index = 35). His team’s work includes the development of new approaches to the synthesis and growth of chalcogenide crystals, the discovery of novel compounds in borate systems, and the study of crystals with unusual electronic properties—research reflected in three co-authored papers published in Nature (2018, 2021, 2023).
讲座简介：Modern materials science increasingly relies on the controlled growth of functional single crystals. This talk presents illustrative examples of an integrated approach to crystal engineering—combining thermodynamic design, tailored synthesis, and advanced growth techniques such as the Bridgman and flux methods. We demonstrate that even minor deviations from stoichiometry or intentional doping can profoundly alter a material’s optical, electrical, and mechanical properties. Case studies include topological semimetals like Bi2Te3, layered semiconductors such as GaSe, and rare-earth borates exemplified by TbAl3(BO3)4. The results underscore a central principle: technological breakthroughs in functional materials emerge from the synergy of fundamental knowledge and experimental expertise in crystal growth.