中科院纳米标准与检测重点实验室第258期学术报告

发布时间:2021-04-16 | 【打印】 【关闭】
报告题目:Pressure: A New Dimension for the Research of Halide Perovskites (高压: 卤化物钙钛矿研究的新维度)
报告人:吕旭杰研究员,北京高压科学研究中心
时  间:2021年4月16日(星期五)下午1:30—3:00
地  点:南楼三层会议室
报告人简介: 
吕旭杰研究员2006年获浙江大学学士学位,2011年获中科院上海硅酸盐所博士学位,回国前就职于美国国家实验室(奥本海默学者),目前任北京高压科学研究中心研究员、博士生导师。研究方向包括功能材料的多维度调控、多功能复合薄膜的设计生长。采用同步辐射和实验室表征技术,原位观测材料在外部刺激下(压力、温度、磁场、激光、电磁辐射等)结构和性质的变化,研究其变化规律,并通过高压和高低温等极端条件探索常规方法无法获得的新材料和新结构。已发表包括Nature, JACS, Adv. Mater., Angew. Chem. Int. Ed., Nano Lett., PNAS等在内的SCI论文70多篇,总引用超过5000次。获中国和美国发明专利6项。研究成果多次被选为非常重要论文或热点论文,并被《中国科学报》等新闻媒体亮点报道。在国际会议上做邀请报告20余次;担任JACS和Adv. Mater.等期刊审稿人、Mater. Res. Lett. 等期刊编委。
报告摘要: 
Perovskite-based optoelectronic materials have enabled a wide range of technological applications including solar cells, light-emitting diodes, lasers, radiation detectors, etc. Two main focuses include the understating of the structure-property relationships and the exploration of advanced new materials with enhanced and/or emergent functionalities. In this talk, I present our recent efforts on the investigation of halide perovskites using high pressure, an alternative approach to exploring novel materials with desirable properties which also permit a deeper understanding of a wide range of phenomena. Using the state-of-the-art high-pressure techniques coupled with in situ synchrotron-based and in-laboratory property measurements, we characterized the changes of the lattice, electronic, optical, and optoelectronic properties of halide perovskites and revealed their structure-property relationships.