Lead-free double perovskite Cs₂MBiCl₆ (M = Ag, Cu): insights into the optical, dielectric, and charge transfer properties.

ABSTRACT: Recently, double perovskites have shown excellent potential considering the instability and toxicity problems of lead halide perovskites in optoelectronic devices. Here, the double perovskites Cs₂MBiCl₆ (M = Ag, Cu) were successfully synthesized via the slow evaporation solution growth technique. The cubic phase of these double perovskite materials was verified through the X-ray diffraction pattern. The investigation of Cs₂CuBiCl₆ and Cs₂AgBiCl₆ utilizing optical analysis showed that their respective indirect band-gap values were 1.31 and 2.92 eV, respectively. These materials, which are double perovskites, were examined using the impedance spectroscopy technique within the 10^-1 to 10⁶ Hz frequen

SUBMITTER: Ben Bechir M 

PROVIDER: S-EPMC10261914 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature