Dual‐Doping Strategy of Metal Chlorides in Ambient Air with High Humidity for Achieving Highly Air‐Stable All‐Inorganic Perovskite Solar Cells.

A recent article in Solar RRL discusses a dual doping strategy using metal chlorides to enhance the stability and performance of all-inorganic perovskite solar cells. The researchers used CaCl2 and InCl3 additives to improve the phase stability and photoelectric properties of CsPbI2Br films. The resulting solar cells demonstrated high humidity storage and long-term optical stability, retaining 90% of their original power conversion efficiency after aging for 2400 hours under ambient air (50% relative humidity) and 1500 hours under continuous illumination. This research provides valuable insights for the development of more stable and efficient solar cell technologies. [Extracted from the article]