Tunable Luminescence in Sb³⁺-Doped Cs₃LnCl₆ Perovskites for Wide-Coverage Emission and Anti-Counterfeiting Applications.

ABSTRACT: Zero-dimensional (0D) rare-earth-based metal halides show great potential in photonic and optoelectronic applications owing to their high stability, strong exciton confinement, and tunable energy levels. However, the weak absorption and narrow 4f-4f transitions of rare-earth ions limit their performance. To address this, a series of Sb³⁺-doped Cs₃LnCl₆ (Ln: Yb, La, Eu, Ho, Ce, Er, Tb, Sm, Y) nanocrystals were synthesized via a hot-injection method to study the role of Sb³⁺ doping. Sb³⁺ incorporation induces strong broadband self-trapped exciton (STE) emission from Jahn-Teller-distorted [SbCl₆]^3- units and enables efficient energy transfer from STEs to rare-earth ions. As a result, the photoluminescence intensity a

SUBMITTER: Zhang L 

PROVIDER: S-EPMC12693347 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature