He specializes in polymer synthesis for solar cells, light-emitting diodes, and light-emitting electrochemical cell applications, with over 30 peer-reviewed publications. His current research interests include narrow band-gap conjugated polymer synthesis for solar-cell applications. Dr. Sun received a BS degree from Qingdao University of Science and Technology, China, and a PhD from the South China University of Technology, Guangzhou, China. He was a visiting scholar in Prof. Qibing Pei's group from 2007–2008 in University of California, Los Angeles.