Tuning the Optical Absorption Edge of Vacancy-Ordered Double Perovskites through Metal Precursor and Solvent Selection.

ABSTRACT: Vacancy-ordered double perovskites with the formula A ₂ MX ₆ (where A is a +1 cation, M is a +4 metal, and X is a halide ion) offer improved ambient stability over other main-group halide AMX ₃ perovskites and potentially reduced toxicity compared to those containing lead. These compounds are readily formed through a number of synthetic routes; however, the manner in which the synthetic route affects the resulting structure or optoelectronic properties has not been examined. Here, we investigate the role of distinct precursors and solvents in the formation of the indirect band gap vacancy-ordered double perovskite Cs₂TeBr₆. While Cs₂TeBr₆ can be synthesized from TeBr₄

SUBMITTER: Brumberg A 

PROVIDER: S-EPMC11467835 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature