Impact of halide variation on the optoelectronic properties of double perovskites.

ABSTRACT: Halide double perovskites of [Formula: see text] (A = Cs, B(I) = Ag, B(III) = Bi, and X = Cl, Br) have gained a lot of attention as an alternative to lead perovskites due to their similar defect tolerance, low toxicity, high stability, high absorption coefficients, long carrier diffusion lengths, and tunable bandgaps. In this study, we used a slow-cooling method to synthesize single crystals of lead-free double perovskites, specifically cesium silver bismuth bromide ([Formula: see text]) and cesium silver bismuth chloride ([Formula: see text]), and investigated the impact of halide variations on the structural, electronics, and optical properties of these materials. According to X-ray diffraction (XRD), both materials crystallize in a cubic structure. In both compounds, the [Formula: see t

SUBMITTER: Choudhary D 

PROVIDER: S-EPMC12480852 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature