Achieving Highly Efficient Warm-White Light Emission in All-Inorganic Copper-Silver Halides via Structural Regulation.

ABSTRACT: Single-component metal halides with white light emission are highly attractive for solid-state lighting applications, but it is still challenging to develop all-inorganic lead-free metal halides with high white-light emission efficiency. Herein, by rationally introducing silver (Ag) into zero-dimensional (0D) Cs₃ Cu₂ Br₅ as new structural building unit, a one-dimensional (1D) bimetallic halide Cs₆ Cu₃ AgBr₁₀ is designed that emits strong warm-white light with an impressive photoluminescence quantum yield (PLQY) of 94.5% and excellent stability. This structural transformation lowers the conduction band minimum while maintaining the localized nature of the valence band maximum, which is crucial in expanding the excitation spec

SUBMITTER: Wang S 

PROVIDER: S-EPMC10558639 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature