High stability and strong luminescence CsPbBr₃-Cs₄PbBr₆ thin films for all-inorganic perovskite light-emitting diodes.

ABSTRACT: All-inorganic lead halide perovskite, characterized by its exceptional optical and electrical properties, is burgeoning as a potential optoelectronic material. However, the standalone CsPbBr₃ component encounters several challenges including small exciton binding energy (≈40 meV) and long charge diffusion length, giving rise to low photo-luminescence quantum-yield (PLQY); ion migration leads to instability in device operation, hindering device operation and potential development. To circumvent these limitations, our research endeavors to construct a novel core-shell structure that transforms the continuous [PbX₆]^4- octahedron into an isolated octahedral structure. We introduce the Cs₄PbBr₆ phase with 0D structure to passivate the vacan

SUBMITTER: Bai T 

PROVIDER: S-EPMC10426272 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature