Abstract
Indoor photovoltaics (IPVs) are receiving great research attention recently due to their projected application in the huge technology field of Internet of Things (IoT). Among the various existing photovoltaic technologies such as silicon, Cadmium Telluride (CdTe), Copper Indium Gallium Selenide (CIGS), organic photovoltaics, and halide perovskites, the latter are identified as the most promising for indoor light harvesting. This suitability is mainly due to its composition tuning adaptability to engineer the bandgap to match the indoor light spectrum and exceptional optoelectronic properties. Here, in this review, we are summarizing the state-of-the-art research efforts on halide perovskite-based indoor photovoltaics, the effect of composition tuning, and the selection of various functional layer and device architecture onto their power conversion efficiency. We also highlight some of the challenges to be addressed before these halide perovskite IPVs are commercialized.
Highlights
This increasing interest can be attributed to the combined effect of four main factors: 1) emergence of efficient third-generation thin-film solar cells such as organic and hybrid perovskites; 2) replacement of incandescent lights inside the buildings by solid-state white light-emitting diode (LED) and fluorescent lamps (FLs); 3) the boom of disruptive technology such as the Internet of Things (IoT) and the associated unprecedented commercial opportunities; and 4) the continued decrease of power requirement for wireless sensors
Even though recently Li et al (2020), Chen (2019), and Lee et al (2019b) have reviewed thin-film indoor photovoltaics, the growing potential and increasing number of publications related to halide perovskite Indoor photovoltaics (IPVs) demand a review focusing on the halide perovskite IPV itself
Concerning interface engineering in indoor photovoltaics, the study reported by Li et al is highly significant as they demonstrated that the ionic liquid of 1-butyl-3methylimidazolium tetrafluoroborate ([BMIM]BF4) can passivate the surface traps on the electron transport layer of PCBM and prevent moisture and oxygen erosion to the perovskite active layer
Summary
Over the last five years, IPVs are gaining much research attention and this is reflected in the increasing number of research publications on this topic published every year (Figure 1A) This increasing interest can be attributed to the combined effect of four main factors: 1) emergence of efficient third-generation thin-film solar cells such as organic and hybrid perovskites; 2) replacement of incandescent lights inside the buildings by solid-state white LEDs and fluorescent lamps (FLs); 3) the boom of disruptive technology such as the Internet of Things (IoT) and the associated unprecedented commercial opportunities; and 4) the continued decrease of power requirement for wireless sensors. Wireless sensors are the most fundamental components in these smart devices (Figure 1B) (Davies, 2015) Powering these sensors is a huge challenge. These sensors are powered by batteries which limit the IoT potential by service interruptions due to battery replacement and
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
