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- Title
Enhanced persistent luminescence of LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup> near-infrared phosphors by codoping Sn<sup>4+</sup>.
- Authors
Huang, Weichao; Gong, Xinyong; Cui, Ruirui; Li, Xucheng; Li, Liangrong; Wang, Xu; Deng, Chaoyong
- Abstract
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.
- Subjects
PHOSPHORS; LUMINESCENCE; NEAR infrared radiation; DIAGNOSTIC imaging; CRYSTALLINITY
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 12, p10535
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-018-9117-x