Liu Xiao-Ke, Xu Weidong, Bai Sai, Jin Yizheng, Wang Jianpu, Friend Richard H, Gao Feng
Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden.
Center for Chemistry of High-Performance and Novel Materials, State Key Laboratory of Silicon Materials, and Department of Chemistry, Zhejiang University, Hangzhou, China.
Nat Mater. 2021 Jan;20(1):10-21. doi: 10.1038/s41563-020-0784-7. Epub 2020 Sep 14.
Metal halide perovskites have shown promising optoelectronic properties suitable for light-emitting applications. The development of perovskite light-emitting diodes (PeLEDs) has progressed rapidly over the past several years, reaching high external quantum efficiencies of over 20%. In this Review, we focus on the key requirements for high-performance PeLEDs, highlight recent advances on materials and devices, and emphasize the importance of reliable characterization of PeLEDs. We discuss possible approaches to improve the performance of blue and red PeLEDs, increase the long-term operational stability and reduce toxicity hazards. We also provide an overview of the application space made possible by recent developments in high-efficiency PeLEDs.
金属卤化物钙钛矿已展现出适用于发光应用的有前景的光电特性。在过去几年中，钙钛矿发光二极管（PeLED）的发展进展迅速，外部量子效率达到了20%以上。在本综述中，我们聚焦于高性能PeLED的关键要求，突出材料和器件方面的最新进展，并强调对PeLED进行可靠表征的重要性。我们讨论了提高蓝色和红色PeLED性能、提高长期运行稳定性以及降低毒性危害的可能方法。我们还概述了高效PeLED近期发展所带来的应用空间。
