A hybrid blue perovskite@metal-organic gel (MOG) nanocomposite: simultaneous improvement of luminescence and stability.

ABSTRACT: Blue light-emitting hybrid perovskite nanocrystals (NCs) are promising candidates for optoelectronic applications. However, these NCs suffer severely from low photoluminescence quantum yield (PLQY) and inferior stability under working conditions. Herein, we report, for the first time, a simultaneous dramatic improvement in both the luminescence and the stability of hybrid perovskite NCs through embedding in a porous metal-organic gel (MOG) matrix. The nanocomposite (EAPbBr₃@MOG, EA: ethylammonium) shows sharp emission in the intense blue region (λ _max < 440 nm), with a substantial ten-fold enhancement in the PLQY (∼53%) compared with EAPbBr₃ NCs (PLQY ∼5%). Incorporation of perovskite NCs into the soft MOG matrix provides the additional benefits of f

SUBMITTER: Mollick S 

PROVIDER: S-EPMC7020792 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature