High‐Performance Flexible All‐Perovskite Tandem Solar Cells with Reduced VOC‐Deficit in Wide‐Bandgap Subcell (Adv. Energy Mater. 45/2022)

Perovskite Solar Cells In article number 2202438, Cong Chen, Dewei Zhao, Fan Fu, and co-workers report 15.1% flexible near-infrared transparent wide-bandgap (1.77 eV) perovskite solar cells with a low open-circuit voltage–deficit of 480 mV. When paired with flexible, narrow-bandgap (1.24 eV) perovskite solar cells, they demonstrate a 23.8% flexible all-perovskite tandem solar cell with a superior open-circuit voltage of 2.1 V.