Indoor photovoltaics, <i>The Next Big Trend</i> in solution?processed solar cells

Indoor photovoltaics (IPVs) have attracted considerable interest for their potential to power small and portable electronics photonic devices. The recent advancemes in circuit design device optimizations has led the required operate internet of things (IoT), such as distributed sensors, remote actuators, communication devices, being remarkably reduced. Therefore, various types sensors a large number nodes can be wireless or even batteryless powered by IPVs. In this review, we provide comprehensive overview developments We primarily focus on third-generation solution-processed solar cell technologies, which include organic cells, dye-sensitized perovskite newly developed colloidal quantum dot indoor cells. Besides, principles are also discussed relation unique characteristics lighting conditions. Challenges prospects development IPV summarized, which, hopefully, lead better understanding future well performance enhancement.