Inorganic halide perovskites for lighting and visible light communication

Inorganic halide perovskites (IHPs) have received substantial attention due to their unique optoelectronic properties. Among all the intriguing performance, the efficient luminescence of IHPs enables the practical application of white light-emitting diodes (WLEDs) for lighting. During the last decade, IHP-based white lighting sources with a high luminesce and a broad color gamut have been developed as strong competitors to conventional and classic WLEDs based on rare-earth phosphors and blue LED chips. Thus, it inspires us to give an overview of the emerging progress of IHP WLEDs that can function as lighting sources. Here, in this review, the generation of luminescent properties and white light in IHPs are first presented. Then, both photoluminescence and electro-luminescence WLEDs with IHPs emitters, including both lead-based and lead-free IHPs, are synthetically discussed to exhibit their advantages. Furthermore, the efforts on the optical performance enhancement of IHPs in WLEDs are demonstrated and summarized. Apart from WLEDs, visible light communication based on IHPs featuring efficient luminescence is proposed to highlight their promising potential in lighting communication. Finally, some perspectives on the evolution and challenges are described, followed by an inspirational outlook on their future development. (C) 2022 Chinese Laser Press

Automated summary

This review provides an overview of inorganic halide perovskites (IHPs) as white light-emitting diodes (WLEDs) for lighting applications. It discusses the generation of luminescence and white light in IHPs, and synthetically analyzes the photoluminescence and electro-luminescence WLEDs with IHPs emitters. The optical performance enhancement of IHPs in WLEDs is demonstrated, and the potential of visible light communication based on IHPs is highlighted. The review concludes with perspectives on the evolution and challenges of IHPs and an outlook on their future development.