| Synthesis and luminescence properties of Sr3-z（AlxSi1-x）O5-xFx：zCe^3＋phosphors |
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| 引用本文： | 马小乐,庄卫东,郭汉杰,刘荣辉,刘元红,何华强,彭鹏,陈磊.Synthesis and luminescence properties of Sr3-z（AlxSi1-x）O5-xFx：zCe^3＋phosphors[J].中国稀土学报(英文版),2013,31(7):665-668. |
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| 作者姓名： | 马小乐 庄卫东 郭汉杰 刘荣辉 刘元红 何华强 彭鹏 陈磊 |
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| 作者单位： | [1]National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co Ltd., Beijing 100088, China [2]School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| 基金项目： | Project supported by National Natural Science Foundation of China （50902011） and the National Hi-Tech R ＆ D Program of China （863 Program, 2011AA03A101） |
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| 摘 要： | Sr3-z(Alx,Si1-x)O -5-xFx:zCe3+ phosphors were synthesized by high-temperature solid-state reaction.The structure and luminescence properties of phosphors with various Al/Si ratios and Ce3+ concentrations were characterized using various methods such as X-ray diffraction,photoluminescence excitation and photoluminescence spectra.XRD result displayed that a complete solid solution between Sr3AlO4F and Sr3SiO5 was formed.With the increasing of x value,a broader excitation band and stronger absorption appeared in the blue light region.Moreover,the emission band shifted to a shorter wavelength and the emission intensity reached a maximum at x=0.6.By adjusting the concentration of Ce3+,a widely tunable range of emission wavelength under the excitation of 460 nm was obtained from the green to yellow regions.In addition,the concentration and thermal quenching were also discussed.
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| 关 键 词： | luminescence solid solution thermal quenching concentration quenching rare earths |
| 收稿时间： | 4 February 2013 |
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