Jianxin Tang received his B.Sc. degree in physics from Zhejiang University in 2002, and Ph.D. degree in Physics and Materials Science from City University of Hong Kong in 2006. Later, he worked as senior research assistant at City University of Hong Kong and chip design engineer on power electronics at Mitsubishi Electric Corporation. In 2008, he was appointed professor at the Institute of Nano Functional & Soft Materials (FUNSOM), Soochow University. His current research areas/interests span device physics and surface science on organic and perovskite light-emitting diodes technology for flat panel display and solid-state lighting, and organic/perovskite photovoltaic cells for renewable energy, including localized electronic state and charge barrier formation at organic interfaces, and novel device architectures to improve device performance with interface modification for carrier transport and light manipulation.