SEMINAR 

　　Key Laboratory of Transparent Opto-fuctional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences 

　　中国科学院上海硅酸盐研究所透明光功能无机材料重点实验室 

　　Luminescence properties of Sr₂CeO₄ nanocrystals 

　　Speaker：Dr. Dariusz Hreniak  

　　Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland 

　　时间：5月27日（周三）9:30 AM 

　　地点：4号楼3楼会议室 

　　联系人：李  江 研究员（52412816） 

　　        潘裕柏 研究员（52412820） 

　　Abstract: Spectroscopic properties of the Sr₂CeO₄ nanocrystals under UV excitation were investigated. Blue emission associated with charge transfer (CT) Ce⁴⁺-O^2- transition was observed. The absorption, excitation and emission spectra of obtained Sr₂CeO₄ nanocrystals were analysed in details. In particular, the influence of the average grain size of Sr₂CeO₄ nanocrystals on their optical properties was studied. 

　　Brief introduction: Born in 1976 in Wroclaw (Poland). Doctor of chemistry at the Institute of Low Temperature and Structure Research Polish Academy of Sciences in Wroclaw. Director's Proxy for implementations and research projects (Since 2005). Present research activities are laser spectroscopy, nanocrystals syntheses, sol-gel materials, rare-earth elements, nanoceramic processing and characterization and luminescence properties of the rare-earth ions in glasses, nanoceramics and nanocomposites. He has published more than 110 publications in international journals and book chapters (h-index 22, >1600 total citations) and 15 patents and patents pending.