On the afternoon of April 17, 2018, Yuanyuan Zhou, an assistant Professor at Brown University, was invited to visit the Department of Electrical Engineering for an academic visit, and made an academic report entitled "Understanding Microstructure Evolution of Halide Perovskite Thin Films for Efficient Stable Solar Cells". The report meeting was presided over by associate Prof. Yi Chen-yi, of Department of Electrical Engineering. Associate Prof. Yan Qingfeng of Department of Chemistry, and more than 20 students from the Departments of Electrical Engineering, Electronic Engineering and Chemistry as well as School of Materials, attended the report meeting. Mr. Zhou's report mainly includes two parts. The first part mainly discusses the morphology control of perovskite films, such as material crystallization and transformation, grain boundary engineering, etc. The second part mainly introduces the latest research results of new perovskite materials for solar cells, such as ideal-bandgap perovskite and non-lead perovskite. Finally, the participants put questions and had heated discussions on the contents of the report.

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Assistant Prof. Zhou Yuanyuan received his Ph.D. degree from Brown University in 2016, and his undergraduate degree from Xi'an Jiaotong University. He also obtained his Master's Degrees in Material Science and Chemistry respectively from Xi'an Jiaotong University and Korea Research Institute of Chemical Technology (KRICT). His main research direction is photoelectric energy conversion and storage. His fifty-two academic papers have been published in international well-known journals, including Chem, Nature Communication and JACS. The number of citations by Google: more than 1900 times with a factor H of 24.