| 纳米TiO2基质掺杂稀土离子Er3+和Yb3+的上转换发光特性 |
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| 引用本文： | 于辉,尚庆坤,王红丹,孔祥贵.纳米TiO2基质掺杂稀土离子Er3+和Yb3+的上转换发光特性[J].分子科学学报,2007,23(2):118-122. |
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| 作者姓名： | 于辉 尚庆坤 王红丹 孔祥贵 |
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| 作者单位： | 1. 东北师范大学化学学院分析测试中心,吉林,长春,130024
2. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130033 |
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| 摘 要： | 采用溶胶-凝胶法制备了掺杂稀土离子Er3 及Er3 /Yb3 的TiO2纳米晶体,考察了样品在980 nm激发光源作用下,不同的稀土离子掺杂量、不同的焙烧温度、不同的激发温度等对其上转换发光特性的影响,并对Er3 /Yb3 共掺杂的上转换发光机制进行了探讨.
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| 关 键 词： | 上转换发光 二氧化钛 稀土 |
| 文章编号： | 24359297 |
| 修稿时间： | 07 24 2006 12:00AM |
Upconversion luminescence Properties of Er3+ and Yb3+ co-doped TiO2 nanopowders |
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| YU Hui,SHANG Qing-kun,WANG Hong-dan,KONG Xiang-gui.Upconversion luminescence Properties of Er3+ and Yb3+ co-doped TiO2 nanopowders[J].Journal of Molecular Science,2007,23(2):118-122. |
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| Authors: | YU Hui SHANG Qing-kun WANG Hong-dan KONG Xiang-gui |
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| Affiliation: | 1. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China ; 2. Changchun Institute of Optics Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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| Abstract: | Nanopowders TiO2 co-doped with Er3 and Yb3 ions were prepared by sol-gel process.The up-conversion luminescence properties with different rare earth concentration,annealed and measured temperatures,were investigated under a 980 nm LD excitation.The influences of structure and sizes of TiO2 host on the up-conversion intensity was studied at the same time.The up-conversion mechanisms of the Er3 /Yb3 co-doped TiO2 nanopowders were discussed also. |
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| Keywords: | Upconversion TiO2 Er3 Yb3 rare earths |
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