| 镱铒共掺Al2O3薄膜上转换机理及其温度特性 |
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| 引用本文： | 李成仁,明成国,李淑凤,丁建华,王宝成,张 丽.镱铒共掺Al2O3薄膜上转换机理及其温度特性[J].物理学报,2008,57(10):6604-6608. |
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| 作者姓名： | 李成仁 明成国 李淑凤 丁建华 王宝成 张 丽 |
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| 作者单位： | (1)大连理工大学物理与光电工程学院，大连 116024; (2)辽宁师范大学物理与电子技术学院，大连 116029 |
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| 基金项目： | 辽宁省科技厅基金(批准号：20062137)资助的课题. |
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| 摘 要： | 采用中频磁控溅射法制备了镱铒共掺Al2O3薄膜，铒镱掺杂浓度分别为0.3%，3.6%(摩尔分数，全文同).讨论了三价铒离子529nm和549nm光致发光的上转换机理.在291.8—573.3K温度区间测量了两绿上转换光谱荧光强度比的温度特性，拟合表达式为R=5.37exp(-738/T).366 K温度时灵敏度最大，为0.0039 K-1.结果表明镱铒共掺Al2O3薄膜适合作为小型、高温和高灵敏的光学温度传感材料.
关键词：
2O3薄膜')" href="#">镱铒共掺Al2O3薄膜
中频磁控溅射
上转换
荧光强度比
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| 关 键 词： | 镱铒共掺Al2O3薄膜 中频磁控溅射 上转换 荧光强度比 |
| 收稿时间： | 2008-02-26 |
| 修稿时间： | 5/8/2008 12:00:00 AM |
Up-conversion mechanisms of Yb-Er co-doped Al2O3 film and its temperature characteristics |
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| Li Cheng-Ren,Ming Cheng-Guo,Li Shu-Feng,Ding Jian-Hu,Wang Bao-Cheng and Zhang Li.Up-conversion mechanisms of Yb-Er co-doped Al2O3 film and its temperature characteristics[J].Acta Physica Sinica,2008,57(10):6604-6608. |
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| Authors: | Li Cheng-Ren Ming Cheng-Guo Li Shu-Feng Ding Jian-Hu Wang Bao-Cheng and Zhang Li |
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| Abstract: | Yb-Er co_doped Al2O3 film was prepared on SiO2/Si substrate using a medium frequency magnetron sputtering system, and the concentrations of dopant Er and Yb ions were 0.3% and 3.6%, respectively. The up-conversion mechanisms of Er3+ photoluminescence at 529 and 549nm were discussed. The fluorescence intensity ratio of the green up-conversion spectra were measured in the temperature range of 291.8—573.3K, and the temperature characteristics were fitted as R=5.37exp(-738/T). At the temperature of 366K, the sensitivity has the maximum value of 0.0039 K-1. The results show that the Yb∶Er∶Al2O3 film is a suitable material for minitype, high-sensitivity and high-temperature optical sensors. |
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| Keywords: | Yb∶Er∶Al2O3 co-doped film medium frequency magnetron sputter up-conversion fluorescence intensity ratio |
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