Dual-locking strategy with a charge-delocalizing ligand for stable perovskites

Abstract

We developed a multifunctional phenyl bis(dithiocarbamate) (PBTC) ligand that enhances perovskite nanocrystal stability under UV exposure and in polar solvents through strong lead chelation and intrinsic UV absorption. Its hole-delocalizing properties suppress phase segregation, making it a promising candidate for photovoltaics and light-emitting diodes.