Defect passivation of a perovskite film by ZnIn2S4 nanosheets for efficient and stable perovskite solar cells

Chem Commun (Camb). 2022 Jan 13;58(5):653-656. doi: 10.1039/d1cc06071f.

Abstract

The defects of a perovskite film were first passivated by two dimensional ZnIn2S4 nanosheets, the non-radiation recombination at interfaces was suppressed and the contact of the perovskite film with water vapour in the air was avoided, resulting in a high efficiency of 20.55%.