In recent years, hybrid organic-inorganic perovskites have attracted much attention as promising light absorbers. Herein, the gas pressure during spin coating for a perovskite layer is introduced as a parameter for perovskite solar cells. We adopt gas pressure engineering to improve the perovskite film morphology without overgrown crystals and pin-holes. As a result, compared to 8.95% efficiency of conventional two step fabrication, perovskite solar cells based on gas-pressure-assisted method showed similar efficiency of 8.48% but increased the current density from 16.28 mA/cm2 to 15.69 mA/cm2, even though it reduced processing time and steps. These findings will provide important guidelines for the fabrication of low-cost perovskite solar cells.
- Modified One-Step Deposition Method
- Solar Cell
- Solar Cell Fabrication
- Two-Step Deposition Method
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering