報告題目：Multi-functional Halide Perovskites for High-Performance Optoelectronics

報告人🧔🏼‍♀️👨🏼：王凱博士 

報告時間🍭：2019年10月14日 14：00

報告地點👂：意昂學術交流室（2號學院樓西2632）

主持人📺：王明 特聘研究員

報告人簡介：

    王凱博士於2017年獲美國阿克倫大（The University of Akron）學高分子系博士學位，畢業後在美國弗吉尼亞理工大學（Virginia Polytechnic Institute and State University）從事博士後研究，現任美國賓夕法尼亞州立大學（The Pennsylvania State University）材料系助理研究教授。Dr. Wang主要研究方向包括有機半導體🧏‍♂️，有機無機雜化鈣鈦礦半導體💄，生物電子材料及相關功能型光電子器件，涉及材料科學🕝，器件物理等多個熱點領域🤰🏼。近五年內在太陽能電池，光電探測器，二維材料，光熱轉換器件等方面以一作或通訊身份在Science Advance, Joule, Energy & Environmental Science, Chemical Society Reviews, Progress in Materials Science, ACS nano, Advanced Energy Materials, ACS Energy Letters, Nano Energy, Advanced Functional Materials等國際著名期刊發表>20篇學術論文並已獲得2項美國專利。Google scholar 引用>2000次，h-index 24。

報告摘要⚫️👼🏻：

     Halide perovskite materials have become one of the research hot topics in the field of optoelectronics, demonstrating superior solar electricity conversion efficiency over 25% and high performance in photodetectors lasers and light emitting diodes (LEDs). In this talk, we will present several recent progresses in our group following but not limited to above directions, including i) strategies for simultaneously improving the solar cell stability and efficiency, ii) defect-free single-crystalline perovskite, and iii) unexpected discoveries of highly conductive layer edge states (LES) in 2D perovskite. We will show the fundamentals from molecular scale of the halide perovskite and their structural expansion to lower-dimensional derivatives, which combinedly have exhibited superior performance in photovoltaic, photo-detector, and photothermal applications. These materials and inhered physical merits will provide a new avenue towards multi-functional optoelectronic applications and novel directions to interdisciplinary researches.