| Intense up-conversion emissions of Yb3+/Dy3+ co-doped Al2O3 nanopowders prepared by non-aqueous sol—gel method |
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| 引用本文： | 李成仁,李淑凤,董斌,孙景昌,卜晓峰,范旭楠.Intense up-conversion emissions of Yb3+/Dy3+ co-doped Al2O3 nanopowders prepared by non-aqueous sol—gel method[J].中国物理 B,2012,21(9):97803-097803. |
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| 作者姓名： | 李成仁 李淑凤 董斌 孙景昌 卜晓峰 范旭楠 |
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| 作者单位： | a College of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China;
b School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China;
c School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 11004092) and the Scientific Research Fund of Education Department of Liaoning Province, China (Grant No. 2009A417). |
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| 摘 要： | Yb3+/Dy3+ co-doped Al2O3 nanopowders have been prepared by the non-aqueous sol-gel method and their up-
conversion photoluminescence spectra are measured under excitation by 980-nm semiconductor laser. The results show
that there are comparatively abundant spectra of up-conversion emissions centered at 378, 408, 527 and 543, and 663
nm, corresponding to 4G9/2 → 6H13/2, 4G9/2 → 6H11/2, 4I15/2 → 6H13/2, and 4F9/2 → 6H11/2 transitions of Dy3+,
respectively. Two-photon and three-photon processes are involved in ultraviolet, violet, green, and red up-conversion
emissions. The energy transition between Yb3+ and Dy3+ is discussed.
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| 收稿时间： | 2012-01-07 |
Intense up-conversion emissions of Yb3+/Dy3+ co-doped Al2O3 nanopowders prepared by non-aqueous sol–gel method |
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| Li Cheng-Ren,Li Shu-Feng,Dong Bin,Sun Jing-Chang,Bo Xiao-Feng,Fan Xu-Nan.Intense up-conversion emissions of Yb3+/Dy3+ co-doped Al2O3 nanopowders prepared by non-aqueous sol–gel method[J].Chinese Physics B,2012,21(9):97803-097803. |
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| Authors: | Li Cheng-Ren Li Shu-Feng Dong Bin Sun Jing-Chang Bo Xiao-Feng Fan Xu-Nan |
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| Affiliation: | a College of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China;
b School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China;
c School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China |
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| Abstract: | Yb3+/Dy3+ co-doped Al2O3 nanopowders have been prepared by the non-aqueous sol-gel method and their up-
conversion photoluminescence spectra are measured under excitation by 980-nm semiconductor laser. The results show
that there are comparatively abundant spectra of up-conversion emissions centered at 378, 408, 527 and 543, and 663
nm, corresponding to 4G9/2 → 6H13/2, 4G9/2 → 6H11/2, 4I15/2 → 6H13/2, and 4F9/2 → 6H11/2 transitions of Dy3+,
respectively. Two-photon and three-photon processes are involved in ultraviolet, violet, green, and red up-conversion
emissions. The energy transition between Yb3+ and Dy3+ is discussed. |
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| Keywords: | Yb3+/Dy + co-doped Al2O3 nanopowders non-aqueous sol-gel method photo- luminescence spectra up-conversion emission |
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