| Upconversion emission of SrYbF5：Er3＋nanosheets modified by Tm3＋ions |
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| 引用本文： | 刘晴,颜晓红,陈远,王祥夫.Upconversion emission of SrYbF5：Er3＋nanosheets modified by Tm3＋ions[J].中国稀土学报(英文版),2013,31(11):1053-1058. |
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| 作者姓名： | 刘晴 颜晓红 陈远 王祥夫 |
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| 作者单位： | [1]College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China [2]School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210046, China |
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| 基金项目： | Project supported by National Natural Science Foundation of China （51032002）, Key Project of the National High Technology Re- search and Development Program （＂863＂ Program） of China （2011AA050526）, Science and Technology Support Plan of Jiangsu Province （BE2011191） and Funding of Jiangsu Innovation Program for Graduate Education （CXZZ13_0143） |
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| 摘 要： | Through a hydrothermal route, the Er3＋and Tm3＋co-doped SrYbF5 nanosheets were synthesized. The resulting samples were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and luminescence spec-tra. Under the excitation of 980 nm laser irradiation, the upconversion emissions of Tm3＋ions centered at 474 nm （1G4→3H6）, 679 nm （3F2→3H6）, 699 nm （3F3→3H6）, 803 nm （3H4→3H6） and emissions of Er3＋ions centered at 522 nm （2H11/2→4I15/2）, 543 nm （4S3/2→4I15/2）, 654 nm （4F9/2→4I15/2） were observed. The upconversion emissions of Er3＋ions were adjusted by the concentration of Tm3＋ions. The energy transfer mechanisms among Er3＋-Yb3＋-Tm3＋in SrYbF5 nanosheets were discussed.
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| 关 键 词： | 上转换发光 离子修饰 纳米 扫描电子显微镜 X射线衍射 X射线光谱 铒离子 能量色散 |
| 收稿时间： | 27 May 2013 |
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