| Synthesis of ZnO：Dy Nanopowder and Photoluminescence of Dy^3＋ in ZnO |
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| 引用本文： | 张琳丽,郭常新,赵後静,胡俊涛.Synthesis of ZnO：Dy Nanopowder and Photoluminescence of Dy^3＋ in ZnO[J].中国稀土学报(英文版),2005,23(5):607-610. |
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| 作者姓名： | 张琳丽 郭常新 赵後静 胡俊涛 |
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| 作者单位： | [1]Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China [2]Department of Physics, University of Science and Technology of China , Hefei 230026, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Anhui Province （01044904） and the National Natural Science Foundation of China （19874057） |
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| 摘 要： | A type of dysprosium-doped ZnO （ZnO：Dy） nanopowder was synthesized by high temperature calcinations. XRD was used to analyze the structure. Photoluminescence spectra were used to study the optical characteristic. PL of ZnO：Dy shows two different spectra which are broad band resulted from the defect of Dy in ZnO and sharp lines from the 4f→4f transition of isolated Dy^3 ＋ luminescence center. The emission and excitation spectra depend on the excitation wavelength and the concentration of Dy^3＋ . The broad bands with peaks at 600 and 760 nm are attributed to the recombination from an electron of the defect Dy in ZnO to a hole in VB.
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| 关 键 词： | 镝 光致发光 氧化锌 合成方法 稀土 能量释放 |
| 文章编号： | 1002-0721（2005）05-0607-04 |
| 收稿时间： | 2005-04-05 |
| 修稿时间： | 2005-05-15 |
Synthesis of ZnO:Dy Nanopowder and Photoluminescence of Dy3+ in ZnO |
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| Zhang Linli,Guo Changxin,Zhao Junjing,Hu Juntao.Synthesis of ZnO:Dy Nanopowder and Photoluminescence of Dy3+ in ZnO[J].Journal of Rare Earths,2005,23(5):607-610. |
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| Authors: | Zhang Linli Guo Changxin Zhao Junjing Hu Juntao |
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| Abstract: | A type of dysprosium-doped ZnO (ZnO:Dy) nanopowder was synthesized by high temperature calcinations. XRD was used to analyze the structure. Photoluminescence spectra were used to study the optical characteristic. PL of ZnO:Dy shows two different spectra which are broad band resulted from the defect of Dy in ZnO and sharp lines from the 4f→4f transition of isolated Dy3+ luminescence center. The emission and excitation spectra depend on the excitation wavelength and the concentration of Dy3+. The broad bands with peaks at 600 and 760 nm are attributed to the recombination from an electron of the defect Dy in ZnO to a hole in VB. |
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| Keywords: | ZnO:Dy nanopowder photoluminescence defect energy rare earths |
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