A stress relaxation strategy for preparing high-quality organic–inorganic perovskite thin films <i>via</i> a vapor–solid reaction
Shenghan Hu, Changyu Duan, Hongqiang Du, Shuang Zeng, Anqi Kong, Yuanyuan Chen, Yong Peng, Yi‐Bing Cheng, Zhiliang Ku
Abstract
A post-vapor treatment was developed to alleviate compressive strains in perovskite thin films grown by vapor–solid reaction. Perovskite solar cells based on these films achieved an improved power conversion efficiency of over 22%.
Topics & Concepts
Perovskite (structure)Materials scienceThin filmEnergy conversion efficiencyChemical engineeringNanotechnologyOptoelectronicsEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics