SEMINAR
The State Key Lab of
High Performance Ceramics and Superfine Microstructure
Shanghai Institute of Ceramics, Chinese Academy of Sciences

　　中 国 科 学 院 上 海 硅 酸 盐 研 究 所 高 性 能 陶 瓷 和 超 微 结 构 国 家 重 点 实 验 室

　　Wonders of Perovskites: from Oxides to Hybrids

　　吴 韬 教授

　　沙特阿卜杜拉国王科技大学

　　时间：2015年9月11日（星期五）上午 10: 00

　　地点： 2号楼607会议室 （国家重点实验室）

　　欢迎广大科研人员和研究生参与讨论！

　　联系人：郑仁奎（1205）

　　报告摘要：

　　Discoveries and rediscoveries of “star” materials with exceptional functionalities have been the central theme of materials science and propelled the modern technologies in the past decades. In this talk, I will share our experiences and lessons learned while playing the “big game” of perovskite-structured materials including both transition-metal oxides and organic-inorganic halides. Oxides have rich phase diagrams and exotic physical properties due to the complex interactions between multiple degrees of freedoms. I will discuss the advantages and challenges of applying oxides like Mott insulators to photovoltaic devices. Light illumination was also used as additional parameter to store information in nonvolatile resistive switching memories and ferroelectric tunneling junctions. Another “hot” frontier is perovskite-structured hybrid metal halides, which can absorb light as a result of their band gap and transport carriers with negligible trapping. However, halides are not as stable as oxides, and I will discuss some available approaches to address this stability problem. Furthermore, using phototransistors, we provide direct evidence on the ambipolar transport of this important class of materials.

　　报告人简介：

　　Dr. Tom Wu (吴韬) received his B.S. degree from Zhejiang University in 1995 and Ph.D. degree from the University of Maryland, College Park in 2002. Before joining King Abdullah University of Science and Technology (KAUST) in Feb. 2013 as Associate Professor, he worked in Argonne National Laboratory in Chicago and Nanyang Technological University (NTU) in Singapore. Dr. Wu has authored/ co-authored nearly 200 peer-reviewed papers in the areas of oxide thin films, heterostructures, nanomaterials, and hybrid materials, with a focus on their electronic, magnetic and optical functionalities. He also serves as Associate Editor for ACS Applied Materials & Interfaces.