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Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals

Ying LiuKey Laboratory of Materials Physics of Ministry of Education School of Physics Zhengzhou University Zhengzhou 450052 ChinaZhuangzhuang MaKey Laboratory of Materials Physics of Ministry of Education School of Physics Zhengzhou University Zhengzhou 450052 ChinaJibin ZhangKey Laboratory of Materials Physics of Ministry of Education School of Physics Zhengzhou University Zhengzhou 450052 ChinaYanni HeKey Laboratory for Physical Electronics and Devices of the Ministry of Education Shaanxi Key Lab of Information Photonic Technique School of Electronic Science and Engineering Xi'an Jiaotong University Xi'an 710049 ChinaJinfei DaiCollaborative Innovation Center of Extreme Optics Shanxi University Taiyuan 030006 ChinaXinjian LiKey Laboratory of Materials Physics of Ministry of Education School of Physics Zhengzhou University Zhengzhou 450052 ChinaZhifeng ShiKey Laboratory of Materials Physics of Ministry of Education School of Physics Zhengzhou University Zhengzhou 450052 ChinaLiberato MannaNanochemistry, Istituto Italiano di Tecnologia Via Morego 30 Genova 16163 Italy

2025en

ABI

Annotatsiya

Abstract Light‐emitting diodes (LEDs) based on halide perovskite nanocrystals have attracted extensive attention due to their considerable luminescence efficiency, wide color gamut, high color purity, and facile material synthesis. Since the first demonstration of LEDs based on MAPbBr 3 nanocrystals was reported in 2014, the community has witnessed a rapid development in their performances. In this review, a historical perspective of the development of LEDs based on halide perovskite nanocrystals is provided and then a comprehensive survey of current strategies for high‐efficiency lead‐based perovskite nanocrystals LEDs, including synthesis optimization, ion doping/alloying, and shell coating is presented. Then the basic characteristics and emission mechanisms of lead‐free perovskite and perovskite‐related nanocrystals emitters in environmentally friendly LEDs, from the standpoint of different emission colors are reviewed. Finally, the progress in LED applications is covered and an outlook of the opportunities and challenges for future developments in this field is provided.

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Identifikatorlar

DOI: 10.1002/adma.202415606

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