Recent Strategies for High-Performing Indoor Perovskite Photovoltaics

Abstract

The development of digital technology has made our lives more advanced as a society familiar with the Internet of Things (IoT). Solar cells are among the most promising candidates for power supply in IoT sensors. Perovskite photovoltaics (PPVs), which have already attained 25% and 40% power conversion efficiencies for outdoor and indoor light, respectively, are the best candidates for self-powered IoT system integration. In this review, we discuss recent research progress on PPVs under indoor light conditions, with a focus on device engineering to achieve high-performance indoor PPVs (Id-PPVs), including bandgap optimization and defect management. Finally, we discuss the challenges of Id-PPVs development and its interpretation as a potential research direction in the field.

Wide‐Gap Perovskites for Indoor Photovoltaics

“…This finding is in line with ongoing endeavors in the PSC community to further advance the performance of inverted devices, which center around the reduction of the defect-and interface-recombination as well as optimization of charge transport. [42,[89][90][91][92][93][94] It is worth mentioning that most device optimization pathways for performance improvements are currently developed with respect to outdoor applications (i.e., typically under AM1.5G conditions). However, while some of these approaches may be adapted for improving PSC performance under indoor conditions, further exploration of the links between fundamental device physics, overall efficiency, and engineering is required.…”

Ion–Dipole Interaction Enabling Highly Efficient CsPbI3 Perovskite Indoor Photovoltaics

“…First, the suitable band gap of perovskite materials is the basis for the preparation of high-performance PIPVs. [20,21] Wide-bandgap all-inorganic perovskites (CsPbBrI 2 , CsPbI 3 , etc.) are excellent candidates for highperformance PIPVs due to their excellent optical and thermal stability and narrow absorption spectra (300-800 nm).…”