| 稀土掺杂复式钨酸盐纳米晶体的制备及发光性能 |
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| 引用本文： | 薛宁,邹永金,樊先平. 稀土掺杂复式钨酸盐纳米晶体的制备及发光性能[J]. 材料科学与工程学报, 2007, 25(2): 214-217 |
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| 作者姓名： | 薛宁 邹永金 樊先平 |
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| 作者单位： | 浙江大学材料系,浙江,杭州,310027;浙江大学材料系,浙江,杭州,310027;浙江大学材料系,浙江,杭州,310027 |
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| 摘 要： | 应用水热合成技术制备了稀土掺杂复式钨酸盐NaRe（WO4）2（Re=La,Y,Gd）纳米晶体,水热合成温度随Re^3＋种类的不同而呈现较大的差异.稀土离子在NaRe（WO4）2纳米晶体中处于非反演对称中心位置.在980nm红外光激发下,Yb^3＋和Er^3＋共掺的NaRe（WO4）2纳米晶体可产生明显的绿色上转换发光,发光机理为双光子过程.
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| 关 键 词： | 稀土离子 复式钨酸盐 纳米晶体 发光 |
| 文章编号： | 1673-2812(2007)02-0214-04 |
| 修稿时间： | 2006-05-20 |
Preparation Process and Luminescence Properties of Rare Earth Doped Double Tungstates Nanocrystals |
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| XUE Ning,ZOU Yong-jin,FAN Xian-ping. Preparation Process and Luminescence Properties of Rare Earth Doped Double Tungstates Nanocrystals[J]. Journal of Materials Science and Engineering, 2007, 25(2): 214-217 |
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| Authors: | XUE Ning ZOU Yong-jin FAN Xian-ping |
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| Abstract: | Hydrothermal synthesis process and luminescence properties of rare earth doped double tungstates NaRe(WO_4)_2 nanocrystals have been investigated.The hydrothermal synthesis temperatures changed with different Re~(3+) ions.The rare earth ions were found to be located at anti-inversion symmetry in the NaRe(WO_4)_2 crystals.The strong green upconversion luminescence of Er~(3+) and Yb~(3+) co-doped NaRe(WO_4)_2 nanocrystals under 980 nm excitation could be observed,mechanism of luminescence was also discussed. |
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| Keywords: | rare earth double tungstates nanocrystals luminescence |
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