Halide Perovskite Light-Emitting Diode Technologies

Halide perovskites have attracted considerable attention in next-generation solid-state lighting and displays owing to their outstanding optoelectronic properties. Over the past few years, perovskite light-emitting diodes (LEDs) have achieved high external quantum efficiencies of >20% with active layers showing photoluminescence quantum efficiencies close to unity. This paper reviews the historical breakthroughs and recent advancements in perovskite LEDs with near-infrared, red, green, and blue emission colors. Critical challenges, including device stability and material toxicity, are discussed. Finally, an outlook on white emission and lasing applications based on perovskite materials is presented.

Automated summary

Halide perovskites have shown remarkable optoelectronic properties in next-generation solid-state lighting and displays, particularly in LEDs with high external quantum efficiencies. Challenges related to device stability and material toxicity are being addressed, while there is potential for white light emission and lasing applications using perovskite materials in the future.