Tunable Emission Properties of Sb³⁺/Pb²⁺ Co-Doped Cs₇Cd₃Br₁₃ for Optical Anti-Counterfeiting Application.

ABSTRACT: Cd-based perovskite materials have the advantages of high emission efficiency and tunable emission, as well as broad application prospects in the field of optoelectronics. However, achieving multimode dynamic luminescence under UV light excitation in a single system is a great challenge. Here, we successfully prepared Sb3+/Pb2+ co-doped Cs7Cd3Br13 crystals by a simple hydrothermal method. Tunable emission from orange to white and then to blue, covering the wavelength range between 370 and 800 nm, was achieved by varying the doping concentration of Pb2+ ions in Cs7Cd3Br13:0.5%Sb3+. Temperature-dependent photoluminescence (PL) spectra and density functional theory (DFT) calculations confirm that the wide-band white-light emission of Cs7Cd3Br13: Sb3+/Pb2+ crystal comes from the first self-tra

SUBMITTER: Zheng B 

PROVIDER: S-EPMC12388824 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature