Ph. D. in Photovoltaic Materials and Devices, an expert in solar cell manufacturing technology. He began to engage in the manufacture and technology development of crystalline silicon solar cells in 2006. He has a unique and in-depth understanding of the high-efficiency solar cell technologies and processes. In the industry, he take the lead in the early research and mass production development of mono and multi crystalline PERC cells. Recently, he has carried out systematic research and industrialization of advanced technologies such as n-type contact passivation cells.