Perovskite-Surface-Confined Grain Growth for High-Performance Perovskite Solar Cells.

ABSTRACT: The conventional post-annealing (CPA) process is frequently employed and regarded a crucial step for high-quality perovskite thin-films. However, most researchers end up with unwanted characteristics because controlling the evaporation rate of perovskite precursor solvents during heat treatment is difficult. Most perovskite thin-films result in rough surfaces with pinholes and small grains with multiple boundaries, if the evaporation of precursor solvents is not controlled in a timely manner, which negatively affects the performance of perovskite solar cells (PSCs). Here, we present a surface-confined post-annealing (SCPA) approach for controlling the evaporation of perovskite precursor solvents and promoting crystallinity, homogeneity, and surface morphology of the resulting perovskites.

SUBMITTER: Sajid S 

PROVIDER: S-EPMC9565253 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature