| White light generation of glass ceramics containing Ba_2LaF_7：Eu~（2＋）,Tb~（3＋） and Sm~（3＋） nanocrystals |
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| 引用本文： | 徐扬,崔硕,傅恒毅,钱江云,骆群,乔旭升,樊先平,章向华.White light generation of glass ceramics containing Ba_2LaF_7：Eu~（2＋）,Tb~（3＋） and Sm~（3＋） nanocrystals[J].Chinese Optics Letters,2012(3):65-68. |
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| 作者姓名： | 徐扬 崔硕 傅恒毅 钱江云 骆群 乔旭升 樊先平 章向华 |
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| 作者单位： | Department of Materials Science and Engineering,Zhejiang University;UMR-CNRS 6512 "Verres and Ceramiques",Institut de Chimie de Rennes,Universite de Rennes 1-Campus de Beaulieu |
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| 基金项目： | supported by the National Nature Science Foundation of China(No.50902120);the Research Fund of the Doctoral Program of Higher Education of China(No.20100101120025);the Science and Technology Innovative Research Team of Zhejiang Province(No.2009 R50010);the Program for Changjiang Scholars and Innovative Research Team in the University |
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| 摘 要： | The Eu 2＋ /Tb 3＋ /Sm 3＋ co-doped oxyfluoride glass ceramics containing Ba2LaF7 nanocrystals are prepared in the reducing atmosphere.The X-ray difiraction results show that Eu 2＋ ,Tb 3＋ and Sm 3＋ ions are enriched into the precipitated Ba2LaF7 nanophase after the annealing process.It deduces efficient energy transfers from Eu 2＋ to Tb 3＋ and Sm 3＋ and intenses warm white luminescence of the glass ceramics. Comparing with the glass,the luminescence quantum yield of the glass ceramics is also enlarged by about 3 times.This demonstrates the potential white light-emitting diode application of the glass ceramics produced in this letter.
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| 关 键 词： | 结核病 纳米晶 氟氧化物玻璃陶瓷 欧盟 白色发光二极管 钐 光量子产率 还原气氛 |
White light generation of glass ceramics containing Ba2LaF7:Eu2+,Tb3+ and Sm3+ nanocrystals |
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| Yang Xu,Shuo Cui,Hengyi Fu,Jiangyun Qian,Qun Luo,Xusheng Qiao,Xianping Fan,and Xianghua Zhang.White light generation of glass ceramics containing Ba2LaF7:Eu2+,Tb3+ and Sm3+ nanocrystals[J].中国光学快报(英文版),2012(3):65-68. |
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| Authors: | Yang Xu Shuo Cui Hengyi Fu Jiangyun Qian Qun Luo Xusheng Qiao Xianping Fan and Xianghua Zhang |
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| Institution: | 1 Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China 2 UMR-CNRS 6512"Verres and Ceramiques",Institut de Chimie de Rennes,Universite de Rennes 1-Campus de Beaulieu, 35042 Rennes Cedex-France |
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| Abstract: | The Eu 2+ /Tb 3+ /Sm 3+ co-doped oxyfluoride glass ceramics containing Ba2LaF7 nanocrystals are prepared in the reducing atmosphere.The X-ray difiraction results show that Eu 2+ ,Tb 3+ and Sm 3+ ions are enriched into the precipitated Ba2LaF7 nanophase after the annealing process.It deduces efficient energy transfers from Eu 2+ to Tb 3+ and Sm 3+ and intenses warm white luminescence of the glass ceramics. Comparing with the glass,the luminescence quantum yield of the glass ceramics is also enlarged by about 3 times.This demonstrates the potential white light-emitting diode application of the glass ceramics produced in this letter. |
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