Heavy-atom effect regulating room temperature phosphorescence in hybrid metal halide glasses.

ABSTRACT: Room-temperature phosphorescence (RTP) in hybrid metal halide glasses offers promising applications in optoelectronics and anti-counterfeiting, yet achieving tunable RTP properties remains challenging. Here, we report a solvent-assisted rapid evaporation method to synthesize a series of zero-dimensional (0D) butyltriphenylphosphonium-based (BuTPP⁺) hybrid metal halide glasses with the composition (BuTPP)₂MCl₂X₂ (M = Zn, Cd; X = Cl, Br, I). By incorporating optically inert heavy-atom-containing metal halide units [MCl₂X₂]^2-, we demonstrate precise regulation of RTP lifetimes via the heavy-atom effect, with lifetimes decreasing from 608.6 ms for (BuTPP)₂ZnCl₄ to 146 ms for (BuTPP)_2<

SUBMITTER: Lian L 

PROVIDER: S-EPMC12616411 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature