Congratulations to Dr. Jia Ding on his successful PhD defenses entitled “Study of CdTe/MgCdTe Double-Heterostructure Solar Cells and an Epitaxial Lift-Off Technology for Thin-Film and Tandem Applications”. The group would like to gratefully thank Jia for his many contributions in the past years, and we wish him continued success in his future scientific work with Meta.