SrZnO∶Eu,Li长波紫外激发红光荧光体的合成及发光性能研究

被引:28
作者
余锡宾
杨良准
杨仕平
周春蕾
许晓琳
唐锦锋
彭秀东
不详
机构
[1] 上海师范大学生命与环境科学学院
[2] 上海师范大学生命与环境科学学院 上海
[3] 上海
关键词
长波紫外激发; SrZnO2∶Eu3+,Li+; Eu3+; 荧光体; 稀土;
D O I
暂无
中图分类号
O482.31 [发光学];
学科分类号
070205 ; 0805 ; 080502 ; 0809 ;
摘要
采用高温固相法合成了一种长波紫外激发的SrZnO2∶Eu3+,Li+发光材料,用X射线衍射谱、荧光光谱对样品进行了表征。结果表明,Eu3+离子在SrZnO2基质中主要占据Sr2+离子不对称性格位,发射来源于5D0→7F2612 nm为主的红光。加入电荷补偿剂Li+离子能显著提高发光强度,350~400 nm内的激发峰也有明显提高,同时观察到来自Eu3+离子高能级5D1→7FJ(J=0~2)的跃迁发射,并对其产生机制进行了初步探讨。实验结果表明,SrZnO2∶Eu3+,Li+是一种有发展前途的长波紫外激发红光荧光体。
引用
收藏
页码:533 / 536
页数:4
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