Solvent Evaporation Induced Large-Scale Synthesis of Cs₄PbBr₆ and CsPbBr₃ Microcrystals: Optical Properties and Backlight Application for LEDs.

ABSTRACT: The contemporary work focuses on embossing the emissive nature of lead halide perovskite materials, specifically Cs₄PbBr₆ microcrystal powder prepared via single step bulk recrystallization method followed by the solvent evaporation route from gram to kilogram scale. The X-ray diffraction pattern confirms the formation of phase pure Cs₄PbBr₆ with a goodness of fit value of 1.51 calculated from Rietveld refinement and the fluorophore powder manifesting an intrinsic band gap of 3.76 eV. The experimental yield of 99.4% indicates the absence of any unreacted precursors. The fabricated flexible, free-standing Cs₄PbBr₆@PMMA film encompassed better moisture stability without undergoing phase transitions for 400 days. The temperatur

SUBMITTER: Suresh S 

PROVIDER: S-EPMC9909814 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature