He has coauthored 12 book chapters and invited reviews, published over 450 journal articles with over 14800 citations (>20000 in GS), and co-authored over 10 patents related to advanced PV technology. In 2006, Dr. Yu received an R&D 100 award (Editor’s choice for most promising technology) for his work with Dr. Wladek Walukiewicz on multiband semiconductors for high efficiency solar cells. Since August 2014, he serves as an Associate Editor for the Journal of Applied Physics.