材料科学
卤化物
光致发光
锰
显色指数
荧光粉
钙钛矿(结构)
光电子学
发光效率
量子产额
发光二极管
二极管
纳米技术
无机化学
荧光
光学
图层(电子)
结晶学
冶金
化学
物理
作者
Guoming Hu,Bugong Xu,Aifei Wang,Yan Guo,Jiajing Wu,Faheem Muhammad,W. J. Meng,Chuying Wang,Shiqi Sui,Yao Liu,Yacong Li,Ye Zhang,Yugang Zhou,Zhengtao Deng
标识
DOI:10.1002/adfm.202011191
摘要
Abstract Highly efficient lead halide perovskites with tunable emission performance have become new candidate materials for light‐emitting devices and displays; however, the toxicity of lead and instability of halide perovskites greatly limits their application. Herein, rapid and large‐scale synthesis of highly emissive organic–inorganic manganese halide perovskites, (C 5 H 6 N) 2 MnBr 4 and C 5 H 6 NMnCl 3 , are presented by a one‐pot solution‐based method, of which (C 5 H 6 N) 2 MnBr 4 displays a high absolute photoluminescence quantum yield (95%) in the solid‐state. The developed (C 5 H 6 N) 2 MnBr 4 perovskite noticeably exhibits high stability. Therefore both as‐synthesized green and red emissive manganese‐based phosphors with superior optical properties are used to fabricate blue light pumped white light‐emitting diodes (WLEDs), displaying excellent quality white light with a high color rendering index value of 91 and a correlated color temperature of 5331 K. This study not only presents the robust large‐scale production synthetic approach for organic–inorganic manganese halide perovskites, but also facilitates the development of high‐performance phosphors for future lighting and display technologies.
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