Multiple-Quantum-Well Perovskites for High-Performance Light-Emitting Diodes.

Cheng, Lu; Jiang, Tao; Cao, Yu; Yi, Chang; Wang, Nana; Huang, Wei; Wang, Jianpu · Adv Mater · 2020

review · Level V

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Abstract

Light-emitting diodes (LEDs) based on solution-processed metal halide perovskites have shown great application potential in energy-efficient lighting and displays. Multiple-quantum-well (MQW) perovskites simultaneously possess high photoluminescence quantum efficiency and good film morphology and stability, making it attractive for high-performance perovskite LEDs. Here, merits of MQW perovskites and the progress in MQW perovskite LEDs are reviewed. Challenges and future directions of perovskite LEDs are also discussed.