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Photo-induced luminescence degradation in Ce, Yb co-doped yttrium aluminum garnet phosphors
Liang Tang1,2,3; Huiqi Ye1,2; Dong Xiao1,2
2018-09-10
Source PublicationApplied Optics
Volume57Issue:26Pages:7627-7634
Abstract
Photon-induced luminescence degradation of Ce, Yb co-doped yttrium aluminum garnet phosphors with different Yb concentrations under 457 nm irradiation is studied for the first time, to the best of our knowledge. The degradation behavior is more significant in nano-phosphors prepared via the solgel method, compared with bulkier samples prepared via solid-state reaction. Photoluminescence intensity of Ce3+ ions experiences a drop after initial illumination, due to photoionization of Ce3+ ions, whereas the down-converted luminescence of Yb3+ ions remains relatively stable. Co-doping Yb3 contributes to the luminescence drop of Ce3+ with the excessive Yb3+ ions serving as additional electron traps. The results are in support of a charge transfer process.
Subject Area天文技术与方法
Language英语
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/1564
Collection期刊论文
Affiliation1.南京天文光学技术研究所
2.天文光学技术重点实验室
3.中国科学院大学
Recommended Citation
GB/T 7714
Liang Tang,Huiqi Ye,Dong Xiao. Photo-induced luminescence degradation in Ce, Yb co-doped yttrium aluminum garnet phosphors[J]. Applied Optics,2018,57(26):7627-7634.
APA Liang Tang,Huiqi Ye,&Dong Xiao.(2018).Photo-induced luminescence degradation in Ce, Yb co-doped yttrium aluminum garnet phosphors.Applied Optics,57(26),7627-7634.
MLA Liang Tang,et al."Photo-induced luminescence degradation in Ce, Yb co-doped yttrium aluminum garnet phosphors".Applied Optics 57.26(2018):7627-7634.
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