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| Photoluminescence enhancement of YAG：Ce~（3＋） phosphor prepared by co-precipitation-rheological phase method | |
| 引用本文： | 叶信宇,龙震,杨幼明,聂华平,郭艳伟,蔡裕发. Photoluminescence enhancement of YAG：Ce~（3＋） phosphor prepared by co-precipitation-rheological phase method[J]. 中国稀土学报(英文版), 2012, 0(1): 21-24 |
| 作者姓名： | 叶信宇 龙震 杨幼明 聂华平 郭艳伟 蔡裕发 |
| 作者单位： | School of Metallurgy and Chemistry Engineering,Jiangxi University of Science and Technology;School of Materials Science and Engi-neering,Southwest University of Science and Technology |
| 基金项目： | Project supported by the Natural Science Foundation of Jiangxi Province (2009GQC0042);Foundation of Jiangxi Educational Committee(GJJ10153);Major Science and Technology Project of Jiangxi Province (2010AZD00100);Foundation of Jiangxi University of Science and Technology (Jxxjzd10007) |
| 摘 要： | YAG:Ce3+ phosphor was prepared by a novel co-precipitation-rheological phase method.The resulting YAG:Ce3+ phosphor was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM) and photoluminescent emission spectra.By using acetic acid as solvent,YAG:Ce3+ powder with small particle size(≤2 μm) was obtained at a relatively lower sintering temperature of 1400 oC.With the content of acetic acid increasing,small particles dissolved and disappeared,but larger particles grew up and changed its shape from spherical to partially rectangular.Meanwhile,the emission intensity of the sample prepared by co-precipitation-rheological phase method was about 43% higher than that of the sample prepared by co-precipitation method.It was assumed that the significant improvement of luminescence was mainly because the rheological phase presented a better diffusion environment,and therefore,a better homogeneity of activators of Ce3+. |
| 关 键 词： | phosphors luminescence YAG:Ce3+ co-precipitation-rheological phase method rare earths |
Photoluminescence enhancement of YAG:Ce3+ phosphor prepared by co-precipitation-rheological phase method |
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| YE Xinyu,LONG Zhen,YANG Youming,NIE Huaping,GUO Yanwei,CAI Yufa. Photoluminescence enhancement of YAG:Ce3+ phosphor prepared by co-precipitation-rheological phase method[J]. Journal of Rare Earths, 2012, 0(1): 21-24 | |
| Authors: | YE Xinyu LONG Zhen YANG Youming NIE Huaping GUO Yanwei CAI Yufa |
| Affiliation: | 1(1.School of Metallurgy and Chemistry Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;2.School of Materials Science and Engi-neering,Southwest University of Science and Technology,Mianyang 621010,China) |
| Abstract: | YAG:Ce3+ phosphor was prepared by a novel co-precipitation-rheological phase method.The resulting YAG:Ce3+ phosphor was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM) and photoluminescent emission spectra.By using acetic acid as solvent,YAG:Ce3+ powder with small particle size(≤2 μm) was obtained at a relatively lower sintering temperature of 1400 oC.With the content of acetic acid increasing,small particles dissolved and disappeared,but larger particles grew up and changed its shape from spherical to partially rectangular.Meanwhile,the emission intensity of the sample prepared by co-precipitation-rheological phase method was about 43% higher than that of the sample prepared by co-precipitation method.It was assumed that the significant improvement of luminescence was mainly because the rheological phase presented a better diffusion environment,and therefore,a better homogeneity of activators of Ce3+. |
| Keywords: | phosphors luminescence YAG:Ce3+ co-precipitation-rheological phase method rare earths |
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