Dr. Yan is Professor at Hong Kong University of Science and Technology (HKUST). After obtaining his doctor degree in 2004 at Northwestern University, Dr. Yan continued his research work at Polyera Corporation as a group leader and built up the organic solar cell research division of the company. In 2012, Dr. Yan returned to HKUST and continued his research on organic solar cells. In 2015, Dr. Yan’s record efficiency cell was recorded in NREL chart. Dr. Yan is also one of first scholars reporting highly efficient non-fullerene organic solar cells with low voltage losses (Nature Energy, 2016, 1, 16089).