Strain regulates the photovoltaic performance of thick-film perovskites

• DOI: 10.1038/s41467-024-47019-8
• Publication Date: 2024-03-22T15:02:32Z
• Authors: Pengju Shi; Jiazhe Xu; Ilhan Yavuz; Tianyi Huang; Shaun Tan; Ke Zhao; Xu Zhang; Yuan Tian; Sisi Wang; Wei Fan; Yahui Li; Donger Jin; Xuemeng Yu; Chenyue Wang; Xingyu Gao; Zhong Chen; Enzheng Shi; Xihan Chen; Deren Yang; Jingjing Xue; Yang Yang; Rui Wang
• Keywords: Limiting; Nanometre; Carrier lifetime

Abstract Perovskite photovoltaics, typically based on a solution-processed perovskite layer with film thickness of few hundred nanometres, have emerged as leading thin-film photovoltaic technology. Nevertheless, many critical issues pose challenges to its commercialization progress, including industrial compatibility, stability, scalability and reliability. A thicker scale micrometres could mitigate these issues. However, the efficiencies thick-film cells lag behind those nanometre thickness. With mechanism remaining elusive, community has long been under impression that limiting factor lies in short carrier lifetime result defects. Here, by constructing system extraordinarily lifetime, we rule out restrictions device performance. Through this, unveil role ignored lattice strain thick films. Our results provide insights into factors performance devices.