Rongyue Chao

In Situ Surface Reconstruction of FA-Based Perovskites with Rigid Molecule for Efficient and Stable Photovoltaics

Abstract In the pursuit of commercial perovskite solar cells (PSCs), formamidinium lead iodide (FAPbI3) has become a high-potential material. However, surface FA cations readily deprotonate into volatile amines under light and thermal stress, which leads to the formation of defec...