| Spectroscopic properties and mechanism of Tm^3＋/Er^3＋/Yb^3＋ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals |
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| 引用本文： | 胡曰博,邱建备,周大成,宋志国,杨正文,王荣飞,焦清,周大利.Spectroscopic properties and mechanism of Tm^3＋/Er^3＋/Yb^3＋ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals[J].中国物理 B,2014,23(2):24205-024205. |
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| 作者姓名： | 胡曰博 邱建备 周大成 宋志国 杨正文 王荣飞 焦清 周大利 |
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| 作者单位： | Faculty |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant Nos.61265004 and 51272097);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No.20125314120018) |
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| 摘 要： | Transparent Tm^3＋/Er^3＋/yb^3＋ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals are prepared. Under excitation of a 980-nm laser diode （LD）, compared with the glass before heat treatment, the Tm^3＋/Er^3＋/yb^3＋ co-doped oxyfluorogermanate glass ceramics can emit intense blue, green and red up-conversion luminescence and Stark- split peaks; X-ray diffraction （XRD） and transmission electron microscope （TEM） results show that BaF2 nanocrystals with an average diameter of 20 nm are precipitated from the glass matrix. Stark splitting of the up-conversion luminescence peaks in the glass ceramics indicates that Tm^3＋, Er^3＋ and （or） Yb^3＋ ions are incorporated into the BaF2 nanocrystals. The up-conversion luminescence intensities of Tm^3＋, Er^3＋ and the splitting degree of luminescence peaks in the glass ceramics increase significantly with the increase of heat treat temperature and heat treat time extension. In addition, the possible energy transfer process between rare earth ions and the up-conversion luminescence mechanism are also proposed.
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| 关 键 词： | 纳米陶瓷 氟化钡 共掺杂 e玻璃 Tm 光谱性质 透射电子显微镜 热处理时间 |
| 收稿时间： | 2013-04-08 |
Spectroscopic properties and mechanism of Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals |
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| Hu Yue-Bo,Qiu Jian-Bei,Zhou Da-Cheng,Song Zhi-Guo,Yang Zheng-Wen,Wang Rong-Fei,Jiao Qing,Zhou Da-Li.Spectroscopic properties and mechanism of Tm3+/Er3+/Yb3+ co-doped oxyfluorogermanate glass ceramics containing BaF2 nanocrystals[J].Chinese Physics B,2014,23(2):24205-024205. |
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| Authors: | Hu Yue-Bo Qiu Jian-Bei Zhou Da-Cheng Song Zhi-Guo Yang Zheng-Wen Wang Rong-Fei Jiao Qing Zhou Da-Li |
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| Institution: | a Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China;b Key Laboratory of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;c College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China |
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| Abstract: | Transparent Tm3+/Er3+/Yb3+co-doped oxyfluorogermanate glass ceramics containing BaF2nanocrystals are prepared.Under excitation of a 980-nm laser diode(LD),compared with the glass before heat treatment,the Tm3+/Er3+/Yb3+co-doped oxyfluorogermanate glass ceramics can emit intense blue,green and red up-conversion luminescence and Starksplit peaks;X-ray diffraction(XRD)and transmission electron microscope(TEM)results show that BaF2nanocrystals with an average diameter of 20 nm are precipitated from the glass matrix.Stark splitting of the up-conversion luminescence peaks in the glass ceramics indicates that Tm3+,Er3+and(or)Yb3+ions are incorporated into the BaF2nanocrystals.The up-conversion luminescence intensities of Tm3+,Er3+and the splitting degree of luminescence peaks in the glass ceramics increase significantly with the increase of heat treat temperature and heat treat time extension.In addition,the possible energy transfer process between rare earth ions and the up-conversion luminescence mechanism are also proposed. |
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| Keywords: | up-conversion luminescence oxyfluorogermanate glass ceramic Tm3+/Er3+/Yb3+ co-doped energy transfer |
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