Multisource Vacuum Deposition of Methylammonium-Free Perovskite Solar Cells.

ABSTRACT: Halide perovskites of the form ABX₃ have shown outstanding properties for solar cells. The highest reported compositions consist of mixtures of A-site cations methylammonium (MA), formamidinium (FA) and cesium, and X-site iodide and bromide ions, and are produced by solution processing. However, it is unclear whether solution processing will yield sufficient spatial performance uniformity for large-scale photovoltaic modules or compatibility with deposition of multilayered tandem solar cell stacks. In addition, the volatile MA cation presents long-term stability issues. Here, we report the multisource vacuum deposition of FA_0.7Cs_0.3Pb(I_0.9Br_0.1)₃ perovskite thin films with high-quality morphological, structural, and optoelec

SUBMITTER: Chiang YH 

PROVIDER: S-EPMC7437071 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature