Luminescent Properties of Mn<sup>2+</sup>-doped CsCdCl<sub>3</sub> Microcrystals for LED Application

WANG Rui; ZHANG Ming; CHENG Songyu; ZENG Min; ZHOU Li; WEI Lijie; LI Gen; YANG Liu; HU Yongming; GU Haoshuang; LI Yuebin

doi:10.37188/CJL.20230125

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Luminescent Properties of Mn²⁺-doped CsCdCl₃ Microcrystals for LED Application

Synthesis and Properties of Materials | 更新时间：2023-09-28

- Luminescent Properties of Mn²⁺-doped CsCdCl₃ Microcrystals for LED Application
  增强出版
- Chinese Journal of Luminescence Vol. 44, Issue 9, Pages: 1560-1569(2023)
- 作者机构：
  
  1.湖北大学微电子学院微纳电子材料与器件湖北省重点实验室，湖北武汉　430062
  2.江苏永鼎股份有限公司，江苏苏州　215211
  3.湖北大学潜江产业技术研究院，湖北潜江　433100
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(62305108);Natural Science Foundation of Hubei Province(2022CFB931;2021CFB078;2021CFB493)
- DOI：10.37188/CJL.20230125
  CLC： O482.31
- Published：05 September 2023，
  
  Received：09 May 2023，
  
  Revised：18 May 2023，
- 稿件说明：
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王瑞,张铭,程宋玉等.Mn²⁺掺杂CsCdCl₃微米晶发光性能及其LED应用[J].发光学报,2023,44(09):1560-1569.

WANG Rui,ZHANG Ming,CHENG Songyu,et al.Luminescent Properties of Mn²⁺-doped CsCdCl₃ Microcrystals for LED Application[J].Chinese Journal of Luminescence,2023,44(09):1560-1569.
王瑞,张铭,程宋玉等.Mn²⁺掺杂CsCdCl₃微米晶发光性能及其LED应用[J].发光学报,2023,44(09):1560-1569. DOI： 10.37188/CJL.20230125.

WANG Rui,ZHANG Ming,CHENG Songyu,et al.Luminescent Properties of Mn²⁺-doped CsCdCl₃ Microcrystals for LED Application[J].Chinese Journal of Luminescence,2023,44(09):1560-1569. DOI： 10.37188/CJL.20230125.

摘要

全无机镉基金属卤化物CsCdCl

因其独特的三维晶体结构而具有优异的稳定性、宽带自陷激子（Self⁃trapped excitons，STEs）发射和丰富的离子掺杂格位，在固态照明领域引起了广泛关注。然而，基于八面体畸变的STEs辐射复合的发光效率较低。本文采用简单的室温溶液法制备了一系列Mn

离子掺杂的六方相CsCdCl

∶

%Mn微米晶。在254 nm紫外光激发下，Mn

掺杂的样品发出明亮的橙黄光，发射峰位于598 nm处，半峰宽为75 nm，荧光量子产率最高达99.1%。稳态和瞬态荧光光谱测试结果表明，Mn

掺杂CsCdCl

微米晶的宽光谱发射源自基质的STEs和Mn

离子的d⁃d跃迁。同时，该材料还具备优异的空气、热、水稳定性。我们进一步将CsCdCl

∶5%Mn

荧光粉、商用荧光粉、深紫外或蓝光LED芯片封装成两种白光发光二极管器件，色度坐标分别为（0.36，0.35）和（0.40，0.36），显色指数分别高达91和83，有望成为新一代发光材料用于照明领域。

Abstract

Owing to its excellent stability and wide self-trapped excitons（STEs）emission induced by the special three-dimensional（3D）crystal structure， all inorganic cadmium-based metal halide perovskite CsCdCl

has attracted broad attention in the field of solid-state lighting. However， the luminescence efficiency through radiative recombination of STEs is not high. Herein， a serious of Mn

-doped hexagonal CsCdCl

∶

%Mn microcrystals were prepared by a facial room-temperature solution method. Under 254 nm UV excitation， CsCdCl

microcrystals after Mn

doping show bright orange-yellowish emission peaking at about 598 nm with a full width at half-maximum of 75 nm and the photoluminescence quantum yield of 99.1%. Steady-state and transient photoluminescence results suggest that the broad emission is originating from the matrix STEs and the Mn

dopant. Meanwhile， the as-synthesized materials also display excellent air， heat， and water stability. Two white light-emitting diodes（LEDs）were further fabricated by integrating a mixture of CsCdCl

∶5%Mn and commercial phosphors on a deep UV LED and a blue LED， which demonstrate bright white light with CIE coordinates of （0.36， 0.35） and （0.40， 0.36）， high color rendering indices of 91 and 83， respectively. The synthesized Mn

-doped CsCdCl

phosphor holds great promise for new-generation luminescent materials in the field of lighting.

关键词

CsCdCl3Mn2+掺杂发光性能发光二极管

Keywords

CsCdCl3Mn2+ dopingluminescent propertieslight⁃emitting diode（LED）

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⁰

Luminescent Properties of Mn2+-doped CsCdCl3 Microcrystals for LED Application

DOI：10.37188/CJL.20230125

摘要

Abstract

关键词

Keywords

references

Luminescent Properties of Mn²⁺-doped CsCdCl₃ Microcrystals for LED Application