关于举行英国帝国理工学院 Ji-Seon Kim 教授学术报告的通知
报告题目：Stability of Organic and Perovskites Devices – Progresses and Challenges
报 告 人：Prof. Ji-Seon Kim, Department of Physics & Centre for Plastic Electronics, Imperial College London, UK
邀 请 人：叶轩立 教授
报告时间：2019年3月29日（周五）下午4:00
报告地点：北区科技园1号楼发光材料与器件国重502室
报告简介：
The field of organic semiconductors and perovskites has developed rapidly in recent years from fundamental laboratory discovery into a significant materials and manufacturing technology for a range of thin-film electronics applications including displays, solar cells, transistors and sensors. While innovation in the new semiconductor materials and processing techniques continues to improve the performance of organic and perovskites devices, further research is still required to gain crucial insights into their stability. In this talk, I will highlight the key advances on our understanding in the stability of organic and perovskite materials and devices. First, I will focus on non-fullerene acceptors (NFAs). NFAs provide an exciting alternative to traditional fullerene containing organic photovoltaics and are already out-competing fullerenes in terms of device efficiency. I will show how minor changes in the chemical structures of NFAs can cause significant changes in their photostability, and hence device performance. Second, I will present our recent results of perovskites-based photovoltaic devices identifying the origins of different open circuit voltages and their potential loss mechanisms in conventional and inverted device structures. Throughout my talk, I will discuss the potential design rules for stable molecules and devices.
个人简介:
Ji-Seon Kim is Professor of Solid State Physics and Director of the Plastic Electronics Centre for Doctoral Training () at Imperial College London. She also held a Visiting Professorship in Materials Science and Engineering at KAIST, South Korea. She has previously taken up an EPSRC Advanced Research Fellowship at the University of Cambridge, obtained a PhD in Physics at Cambridge under the supervision of Prof Sir Richard Friend. She is conducting scientific research as a technical consultant for Cambridge Display Technology Ltd. Her research focuses on the basic Science and Technology of Soft Electronic Materials for Energy and Bio applications, as well as developing new Nanometrology for these materials. She is leading the Nanoanalysis Group ().
