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A Novel Narrow-Band Green-Emitting Phosphor CsKNaLi(Li3SiO4)4 with the UCr4C4-Related Type Structure

Submit Time: 2019-04-30
Author: 师进生 2 ; 王丽丽 1 ; 孔晓颖 2 ; 李鹏 1 ; 兰学芳 2 ; 陈倩 1 ;
Institute: 1.青岛农业大学理信学院; 2.青岛农业大学化药学院;

Abstracts

我们成功合成了CsKNaLi(Li3SiO4)4:Eu2+ (CKNLLSO:Eu2+)作为UCr4C4型结构氧基家族的新成员。该荧光粉的基质化合物的晶体结构和能带结构分别通过Rieveld精修方法和密度泛函理论分析和计算。由于高度压缩和刚性的阴离子骨架,取代Cs格位的Eu2+在InGaN基紫外LED的激发下,发出了明亮的绿色荧光,半峰宽为55 nm.当温度升高到190℃时,CKNLLSO:Eu2+的稳定性仍然较好。采用浓度优化的CKNLLSO:4%Eu2+制成的LED器件发出的绿光的色坐标为(0.2320, 0.6016),相关色温为7314K。分析结果表明,这种荧光粉是一种很有前景的白光LED绿色荧光粉。
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From: Jinsheng Shi
DOI:10.12074/201904.00103
Recommended references: 师进生,王丽丽,孔晓颖,李鹏,兰学芳,陈倩.(2019).A Novel Narrow-Band Green-Emitting Phosphor CsKNaLi(Li3SiO4)4 with the UCr4C4-Related Type Structure.[ChinaXiv:201904.00103] (Click&Copy)
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[V1] 2019-04-30 10:56:40 chinaXiv:201904.00103V1 Download
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