Enhanced persistent luminescence of LiGa5O8:Cr3+ near-infrared phosphors by codoping Sn4+

被引：30
作者：
Huang, Weichao [1 ]
Gong, Xinyong [1 ]
Cui, Ruirui [1 ]
Li, Xucheng [1 ]
Li, Liangrong [1 ]
Wang, Xu [1 ]
Deng, Chaoyong [1 ]
机构：
[1] Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Guizhou, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 12期
基金：
中国国家自然科学基金;
关键词：
LONG-PERSISTENT; RE3+ RE; NANOPARTICLES; NANOPROBES; ZINC; CAGA2S4-EU2+; AFTERGLOW; DEEP; EU2+; TIN;
D O I：
10.1007/s10854-018-9117-x
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The near-infrared (NIR) long persistent phosphors LiGa5O8:Cr3+ have attracted considerable attention owing to the potential applications in medical imaging. A series of novel LiGa5O8:Cr3+ phosphors with different Sn4+ concentrations were successfully prepared by a high temperature solid-state reaction. The influence of codoping Sn4+ on photoluminescence, long persistent luminescence and thermoluminescence properties were systematically investigated. The results showed the persistent luminescence performance of phosphors was significantly enhanced after the incorporation of Sn4+ ions. Thermoluminescence spectra indicated that the incorporation of Sn4+ contributes to the formation of defects and increase the traps density, thus improving the persistent luminescence properties of LiGa5O8:Cr3+ phosphors.
引用
收藏
页码：10535 / 10541
页数：7
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