Boosting Blue Self-Trapped Exciton Emission in All-Inorganic Zero-Dimensional Metal Halide Cs₂ZnCl₄ via Zirconium (IV) Doping.

ABSTRACT: Low-dimensional metal halides with efficient luminescence properties have received widespread attention recently. However, nontoxic and stable low-dimensional metal halides with efficient blue emission are rarely reported. We used a solvothermal synthesis method to synthesize tetravalent zirconium ion-doped all-inorganic zero-dimensional Cs₂ZnCl₄ for the first time. Bright blue emission in the range of 370 nm-700 nm with a emission maximum at 456 nm was observed in Zr⁴⁺:Cs₂ZnCl₄ accompanied by a large Stokes shift, which was due to self-trapped excitons (STEs) caused by the lattice vibrations of the twisted structure. Simultaneously, the PLQY of Zr⁴⁺:Cs₂ZnCl₄ achieve an impressive 89.67%, positioning it

SUBMITTER: Tian Y 

PROVIDER: S-EPMC11013416 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature