Sb3+-Sensitized Self-Trapped Exciton Emission and Energy Transfer for Tunable Tricolor and Near-White Luminescence in Cs2NaScCl6 Double Perovskite Microcrystals.
Metal-ion doping in lead-free double perovskites is an effective strategy for tailoring lattice structures and enhancing photoluminescence. Herein, Sb3+/Mn2+/Tb3+ codoped Cs2NaScCl6 microcrystals with tunable blue-green-red tricolor emission were synthesized via a solvothermal method. Under ultraviolet excitation, Sb3+...