Towards low-temperature processing of efficient γ-CsPbI₃ perovskite solar cells.

ABSTRACT: Inorganic cesium lead iodide (CsPbI₃) perovskite solar cells (PSCs) have attracted enormous attention due to their excellent thermal stability and optical bandgap (∼1.73 eV), well-suited for tandem device applications. However, achieving high-performance photovoltaic devices processed at low temperatures is still challenging. Here we reported a new method for the fabrication of high-efficiency and stable γ-CsPbI₃ PSCs at lower temperatures than was previously possible by introducing the long-chain organic cation salt ethane-1,2-diammonium iodide (EDAI₂) and regulating the content of lead acetate (Pb(OAc)₂) in the perovskite precursor solution. We find that EDAI₂ acts as an intermediate that can promote the formation of γ-CsPbI₃

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC10394668 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature