EA-Directing Formamidinium-Based Perovskite Microwires with A-Site Doping.

ABSTRACT: One recent development to improve optoelectronic properties of perovskites is to use a larger cation for multication engineering. The chain-like ethylammonium (EA) [(C₂H₅)NH₃]⁺ cation is more likely to form a one-dimensional perovskite structure; however, there is no remarkable evidence in this connection. Therefore, in this work, for the first time, the EA cation as an alternative cation was introduced into FAPbBr₃ cubic crystals to explore the stabilities and optoelectronic properties of mixed FA _x EA_(1-x)PbBr₃ perovskites. The results indicate that replacing FA with EA is a more effective way to realize band gap tuning and morphology transformation between the cubic shape and microwires

SUBMITTER: Xu S 

PROVIDER: S-EPMC7970562 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature