Pressure-Triggered Blue Emission of Zero-Dimensional Organic Bismuth Bromide Perovskite.

ABSTRACT: Understanding the structure-property relationships in Zero-dimensional (0D) organic-inorganic metal halide perovskites (OMHPs) is essential for their use in optoelectronic applications. Moreover, increasing the emission intensity, particularly for blue emission, is considerably a challenge. Here, intriguing pressure-induced emission (PIE) is successfully achieved from an initially nonluminous 0D OMHP [(C₆H₁₁NH₃)₄BiBr₆]Br·CH₃CN (Cy₄BiBr₇ ) upon compression. The emission intensity increases significantly, even reaching high-efficiency blue luminescence, as the external pressure is increased to 4.9 GPa. Analyses of the in situ high-pressure experiments and first-principle

SUBMITTER: Sun ME 

PROVIDER: S-EPMC8097370 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature