A Review on Gas‐Quenching Technique for Efficient Perovskite Solar Cells

Perovskite solar cells (PSCs) have made tremendous progress as a new‐generation photovoltaic technology. The preparation of high‐quality perovskite films plays a vital role in obtaining high performance of PSCs. Gas quenching is a facile, reproducible, and low‐cost technique to realize the fabrication of high‐quality perovskite films, thereby showing great potential in the application of highly efficient large‐area PSCs. Herein, the development and application of gas‐quenching technique for PSCs is reviewed and the recent progress on PSCs fabricated by gas quenching is summarized. Furthermore, the gas‐quenching‐related upscalable technique to fabricate large‐area perovskite films and modules is presented. Finally, future research directions on high‐efficiency perovskite solar cells based on the gas‐quenching technique are discussed. Herein, a promising pathway for large‐scale film deposition, which benefits the upscalable production of high‐performance perovskite optoelectronic devices, is provided.