Xin Jiang received his PhD from the Institute of Chemistry, Chinese Academy of Sciences in June 2025. His doctoral research centered on wide-bandgap perovskite subcells and tandem device optimization. He is currently a postdoctoral researcher in the Sargent Group at Northwestern University. His research focuses on high-efficiency and stable perovskite-based tandem solar cells, with particular interest in wide-bandgap perovskites, interfacial engineering, charge-selective contacts, and operational stability.