Zhen Wang, received her Ph.D. degree from Kyushu Institute of Technology, Kitakyushu, Fukuoka, Japan in 2019. His main research interests focus on the perovskite materials and perovskite photovoltaics. his research aims to improve the performance of organic-inorganic perovskite solar cells especially the environmental device stability, which is the main barrier for the device commercialization. During his PhD, he has studied fundamental electronic processes involved in charge photogeneration and device fabrication of lead halide perovskite semiconductors.