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

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.

Perovskite-Molecular Photocatalyst Synergy and Surface Engineering for Superior Photocatalytic Performance.

Metal halide perovskite nanocrystals (NCs), known for their strong visible-light absorption and tunable optoelectronic properties, show significant promise for photocatalytic applications. However, their efficiency is often hindered by rapid charge recombination and insufficient exciton dissociation, limiting effective catalysis. Excited-state interactions at the NC interface are critical in determining photocatalytic performance, underscoring the need for strategies that enhance charge separation and minimize recombination.