Understanding effects of precursor solution aging in triple cation lead perovskite.

ABSTRACT: The solution process is the most widely used method to prepare perovskite absorbers for high performance solar cells due to its ease for fabrication and low capital cost. However, an insufficient level of reproducibility of the solution process is often a concern. Complex precursor solution chemistry is likely one of the main reasons for the reproducibility issue. Here we report the effects of triple cation lead mixed-halide perovskite precursor solution aging on the quality of the resulting films and the device performance. Our study revealed that precursor solution aging has a great influence on the colloidal size distribution of the solution, which then affects the phase purity of the films and device performance. We determined the optimum aging hours that led to the best device efficie

SUBMITTER: Boonmongkolras P 

PROVIDER: S-EPMC9080919 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature