| Yb3+和Er3+共掺杂的CaF2纳米晶近紫外上转换发光 |
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| 引用本文： | 张继森,张立国,任建岳,段佩华,吕少哲.Yb3+和Er3+共掺杂的CaF2纳米晶近紫外上转换发光[J].发光学报,2012,33(5):470-475. |
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| 作者姓名： | 张继森 张立国 任建岳 段佩华 吕少哲 |
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| 作者单位： | 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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| 基金项目： | 国家自然科学基金(11174276,11174278)资助项目 |
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| 摘 要： | 研究了Er3+和Yb3+共掺杂的CaF2纳米材料的制备及其紫外上转换发光性质。在980 nm二极管激光器激发下,该材料可发出相对较强的紫外和绿色双色上转换发光。研究了敏化离子Yb3+以及发光中心离子Er3+掺杂量对该材料紫外上转换发光相对强度的影响,并进一步对该材料紫外上转换发光增强的可能机制进行了探讨。
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| 关 键 词： | 稀土 纳米晶 近红外 近紫外 上转换发光 |
| 收稿时间： | 2012/3/2 |
Near-ultraviolet Upconversion Luminescence in CaF2:Yb3+,Er3+ Nanocrystals |
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| ZHANG Ji-sen,ZHANG Li-guo,REN Jian-yue,DUAN Pei-hua,LV Shao-zhe.Near-ultraviolet Upconversion Luminescence in CaF2:Yb3+,Er3+ Nanocrystals[J].Chinese Journal of Luminescence,2012,33(5):470-475. |
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| Authors: | ZHANG Ji-sen ZHANG Li-guo REN Jian-yue DUAN Pei-hua LV Shao-zhe |
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| Affiliation: | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, China |
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| Abstract: | Near-infrared(NIR) to near-ultraviolet(NUV) upconversion(UP) luminescence properties were explored under 980 nm laser diode(LD) excitation in Yb3+,Er3+ codoped calcium fluoride(CaF2∶Yb3+,Er3+) nanoparticles.The strong enhancement at 407 nm was observed.The results show that the UV enhancement is independent on both the Er3+ concentration and the excited power,while dependent on the annealed time and the particle size.The UP mechanical and thermodynamics process were also discussed. |
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| Keywords: | rare earth nanoparticles near infrared near vultraviolet upconversion emission |
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