Hot Gas-Blowing Assisted Crystallinity Management of Bar-Coated Perovskite Solar Cells and Modules.

ABSTRACT: The bar-coating technique for perovskite solar cells has been studied as a scalable process in relation to solar cell commercialization. In large-area bar coating, solvents with the high boiling points like dimethylformamide or γ-butyrolactone have difficulty in obtaining uniform and planar film at room temperature as they have slow evaporation rate. As an alternative, 2-methoxyethanol is a volatile and polar solvent, which is useful on a bar coating if applied using an air-blowing method with an air knife. Herein, a hot gas-blowing method for the fabrication of a perovskite layer to achieve both proper solvent evaporation and high crystallinity is developed. With 75 °C of N₂ blowing on the bar-coated perovskite solution, highly crystalline perovskite films with large gra

SUBMITTER: Han M 

PROVIDER: S-EPMC11935980 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature