报告摘要：

Organometal halide perovskite solar cells have recently emerged as one of the most promising candidates for the thin film photovoltaics. Compared with the huge improvement on the conversion efficiency, study on the stability of this kind of solar cells is not enough. Here we carefully studied the chemical stability of perovskite under 1) UV 2)expose to O₂ and H₂O 3) expose to solvent or additives in HTL 4)under high temperature. We further did the surface modification before or after perovskite layer. Results showed that the stability of the solar cell improved with the surface modification. 

 

主讲人简介：

Prof. Dr. Wang was born in 1956, received his Ph.D in Nagoya University of Japan in 1995. Dr Wang has once worked as visiting scholar in the department of chemistry and as research associate in the department of electrical and electronic engineering in The Hong Kong University of Science and Technology, and as postdoctoral research in department of materials science and engineering, Tsinghua University. The field of Dr Wang 's current research is Investigation on chemical stability of  perovskites solar cells and its modulation by interface engineering. Now Dr Wang is professor in The Key Lab of Organic-Optoelectronics & Molecular Sciences of Ministry of Education, the Department of Chemistry, Tsinghua University.