| YAG粉末材料中Cr3+敏化的Yb3+近红外发光性质 |
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| 引用本文： | 段佩华,张继森,张立国,任建岳,骆永石,吕少哲.YAG粉末材料中Cr3+敏化的Yb3+近红外发光性质[J].中国光学,2015,8(4):603-607. |
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| 作者姓名： | 段佩华 张继森 张立国 任建岳 骆永石 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： | 国家自然科学基金资助项目(No.11174276,No.11174278) |
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| 摘 要： | 采用高温固相反应法合成了YAG: 0.02Cr3+,yYb3+系列粉末材料,研究了该系列材料在近红外区域的发光特性,主要包括Cr3+,Yb3+的发光性质、Cr3+: 4T2和Yb3+: 2F5/2能级辐射跃迁寿命以及其布居时间的比较,给出了Yb3+最佳掺杂量为10%。实验表明:通过Cr3+→Yb3+能量传递,实现了Yb3+在1 000 nm附近近红外发光的增强,这对进一步提高c-Si太阳能电池转换效率打下了坚实基础。
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| 关 键 词： | Cr3+ Yb3+ 近红外发光 能量传递 |
| 收稿时间： | 2015-03-13 |
Near-infrared emission properties of Yb3+ ions sensitized by Cr3+ ions in YAG powder materials |
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| DUAN Pei-hua,ZHANG Ji-sen,ZHANG Li-guo,REN Jian-yue,LUO Yong-shi,L&#,Shao-zhe.Near-infrared emission properties of Yb3+ ions sensitized by Cr3+ ions in YAG powder materials[J].Chinese Optics,2015,8(4):603-607. |
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| Authors: | DUAN Pei-hua ZHANG Ji-sen ZHANG Li-guo REN Jian-yue LUO Yong-shi L&# Shao-zhe |
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| Institution: | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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| Abstract: | YAG: 0.02Cr3+,yYb3+ powder samples are prepared by high temperature solid-phase reaction method in this paper. Near-infrared emission properties of these powder materials are investigated including emission properties of Cr3+ and Yb3+, luminescence lifetimes of Cr3+: 4T2 and Yb3+: 2F5/2 and comparison of their population time. Optimal doping concentration of Yb3+(10%) is given. Experiments indicate that the broadband spectral conversion makes the Yb3+: 2F5/2→2F7/2 radiation transition obtain a favorable increase around 1 000 nm by the efficient energy transfer from Cr3+ to Yb3+, which laids a solid foundation to enhance solar photovoltaic conversion efficiency. |
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| Keywords: | Cr3+ Yb3+ near-infrared emission energy transfer |
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