Multifunctional Interface Modifier Enables High‐Performance Wide‐Bandgap Perovskite Solar Cells
Wide‐bandgap (WBG, ≥1.68 eV) perovskite solar cells (PSCs) represent promising top‐cell candidates for monolithic perovskite tandem photovoltaics. However, fast crystallization kinetics of perovskite precursors and incomplete surface coverage of hole‐transporting self‐assembled monolayers (SAMs) commonly degrade pero...