A Review on Recent Advances in Flexible Perovskite Solar Cells

Flexible perovskite solar cells (FPSCs), featured with lightweight, high efficiency, and low cost, have attracted much attention anticipating in applications on wearable electronics, near‐space vehicles, and internet of things. High efficiency and mechanical stability are two main factors in the study of FPSCs toward practical applications. In recent few years, many breakthroughs in materials modification and device innovation make the power conversion efficiency of FPSCs reach over 25%. A comprehensive review thus is conducted to elucidate the critical issues including flexible substrates, transparent electrodes, charge transport layers, perovskite films, and modifications for mechanical enhancement of FPSCs, which is expected to promote the future development of FPSCs.