RDM-Enhancing Wide Bandgap Triple Halide-PEROVSKITE-Le-Ting-02-02-2026

The intrinsic properties of wide bandgap, triple cation, triple halide perovskites, like (Cs0.21FA0.74MA0.05)Pb(I0.81Br0.14Cl0.05)3, can be improved by simultaneous doping with zinc cations (0.5%) as well as formate anions (0.5%). Photoluminescence quantum yields (up to 14% on quartz), as well as photoluminescence lifetimes (up to ~7 µs on quartz) indicate improved optical properties. Based on photoluminescent properties, the optimal total doping concentration of zinc ions (Zn(II)) and formate anions (Fo-) is determined to be 1% relative to Pb(II). Research Data Management of this manuscript https://doi.org/10.26434/chemrxiv-2025-39jm6