Flexible and Wearable Optoelectronic Devices Based on Perovskites

Abstract Perovskites as promising photovoltaic materials have been widely investigated due to their excellent photoelectric properties. Perovskite optoelectronic devices have been applied in fields of portable energy, light monitors, image sensors, etc. In recent years, wearable perovskite optoelectronic devices have been developed for their advantages of flexibility, stretchability, and light weight. In this review, the latest development of flexible and wearable perovskite optoelectronic devices is summarized. First, the preparation methods of optoelectronic devices are introduced, especially focusing on the large‐scale fabrication. Then the latest advances of various flexible devices are presented. In particular, the stability and safety of wearable devices, as well as the impact factors and corresponding solutions are discussed. Finally, the challenges for practical applications are put forward and discussed.