Green up-conversion luminescence in Yb^3＋-Pr^3＋ co-doped BaRE2ZnO5（RE=Y,Gd）

Yb3＋and Pr3＋co-doped BaRE2 ZnO5（RE=Y,Gd） up-conversion（UC） phosphors were successfully synthesized by a modified sol-gel method.The processing parameters and optimal concentration of Pr3＋and Yb3＋were determined.The structures and luminescent properties of samples were characterized by X-ray diffract...

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Bibliographic Details
Published in:中国稀土学报：英文版 2013, Vol.31 (12), p.1137-1140
Main Author: 李琳 郭崇峰 焦桓 李婷 郑仲铉
Format: Article
Language:English
Subjects:
X射线衍射
上转换发光
光致发光光谱
共掺杂
激光二极管
镱
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Summary:Yb3＋and Pr3＋co-doped BaRE2 ZnO5（RE=Y,Gd） up-conversion（UC） phosphors were successfully synthesized by a modified sol-gel method.The processing parameters and optimal concentration of Pr3＋and Yb3＋were determined.The structures and luminescent properties of samples were characterized by X-ray diffraction（XRD） and photoluminescence spectra（PL）.With the excitation of 980 nm laser diode,UC spectra showed five prominent emission bands centered at 484,514,546,656 and 670 nm,which were attributed to the1I6 →3H4,3P1 →3H4,3P0 →3H5,3P0 →3F2 and3P0 →3F3 transitions of Pr3＋,respectively.In the light of the pump power dependence,the possible UC mechanism in Yb3＋and Pr3＋co-doped BaRE2 ZnO5（RE=Y,Gd） was proposed and discussed.
ISSN:1002-0721
2509-4963