Highly Improved Photocurrent Density and Efficiency of Perovskite Solar Cells via Inclined Fluorine Sputtering Process (Adv. Funct. Mater. 25/2023)

Inclined Fluorine Sputtering Processes In article 2301033, Sang-Jin Lee, Jin Young Kim, and co-workers, report a method for improving short-circuit current density (JSC) and power conversion efficiency (PCE) of perovskite solar cells (PSCs) by applying an antireflection coating of fluorine and harnessing the F doping effect on the electron transport layer using an inclined fluorine sputtering process. Consequently, the JSC of the F coating and doping perovskite solar cells (F-PSC) increased from 25.05 to 26.01 mA cm−2, and the PCE increased from 24.17 to 25.30% with good stability for F-PSC. The research finding provides a novel technology for the development of high-performance PSCs.