一种提升LED光输出稳定性的有机-无机锰卤化物及其亮度优化
An Organic-inorganic Manganese Halide to Improve LED Light Output Stability and Its Brightness Optimization
摘要
Abstract
Organic-inorganic hybrid manganese halides are ideal narrow-band green light materials,but their en-capsulated LED devices rapidly degrade after being lit,making them unsuitable for applications.This paper reports on an organic-inorganic hybrid manganese halide,(1-mPQBr)2MnBr4,and demonstrates the good light output stabili-ty of its encapsulated LED.In addition,to address the issue of weak luminescence,optimized evaporation synthesis methods and metal ion doping techniques have been proposed.Among these,the sample doped with 10%Li exhibit-ed the highest luminescence intensity,which was a 28%improvement compared to the traditional evaporation meth-od.This study found that the improved evaporation method enhanced the material's absorption of blue light;the ion substitution method altered the crystal structure,thereby increasing the luminescence intensity.The white light LED encapsulated by(1-mPQBr)2MnBr4 has a color gamut coverage of 106%NTSC,with a luminous efficacy of 112 lm/W at a drive current of 10 mA.This discovery opens the door for the application of organic-inorganic hybrid manga-nese halides in the field of high-color-gamut displays.关键词
有机-无机金属卤化物/绿色荧光粉/光致发光/LED应用Key words
organic-inorganic metal halides/green phosphors/photoluminescence/LED applications分类
数理科学引用本文复制引用
孙逸群,张亮亮,潘国徽,吴昊,武华君,张家骅..一种提升LED光输出稳定性的有机-无机锰卤化物及其亮度优化[J].发光学报,2025,46(6):951-960,10.基金项目
国家自然科学基金(U22A20139,52072361,12074373,12074374,52102192) （U22A20139,52072361,12074373,12074374,52102192）
国家重点研发计划(2021YFB3502701) （2021YFB3502701）
吉林省自然科学基金(SKL202302024,20220101208JC,20230101123JC) （SKL202302024,20220101208JC,20230101123JC）
吉林省重点研发计划(20210201024GX) （20210201024GX）
发光学及应用国家重点实验室独立创新项目(SKLA-Z-2023-11) （SKLA-Z-2023-11）
安徽省重大科技项目(2021e03020007) （2021e03020007）
中国科学院透明光功能无机材料重点实验室开放课题 Supported by National Natural Science Foundation of China(U22A20139,52072361,12074373,12074374,52102192) （U22A20139,52072361,12074373,12074374,52102192）
Na-tional Key R&D Program of China(2021YFB3502701) （2021YFB3502701）
Natural Science Foundation of Jilin Province(SKL202302024,20220101208JC,20230101123JC) （SKL202302024,20220101208JC,20230101123JC）
Key Research and Development Program of Jilin province(20210201024GX) （20210201024GX）
Indepen-dent Innovation Project on State Key Laboratory of Luminescence and Applications(SKLA-Z-2023-11) （SKLA-Z-2023-11）
The Major Science and Technology Project of Anhui Province(2021e03020007) （2021e03020007）
The Opening Project Key Laboratory of Transparent Opto-functional Inorganic Material,Chinese Academy of Sciences （）
