| Co-Precipitation Synthesis and Spectral Characteristics of Long Afterglow Phosphor Y2O2 S： Sm^3＋, Mg^2＋ , Ti^4＋ |
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| 引用本文： | 杨志平,李兴民,刘冲,李旭,杨勇,徐小岭,李盼来.Co-Precipitation Synthesis and Spectral Characteristics of Long Afterglow Phosphor Y2O2 S： Sm^3＋, Mg^2＋ , Ti^4＋[J].中国稀土学报(英文版),2007,25(1):23-26. |
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| 作者姓名： | 杨志平 李兴民 刘冲 李旭 杨勇 徐小岭 李盼来 |
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| 作者单位： | [1]College of Physics Science and Technology, Hebei University, Baoding 071002, China [2]Handan Municipal Information Industry Bureau, Handan 056002, China [3]College of Graduate, Hebei University, Baoding071002, China |
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| 基金项目： | Project supported by the Hebei Developing Foundation of Science ＆ Technology （51215103b） |
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| 摘 要： | Y2O2S：Sm^3＋, Mg^2＋, Ti^4＋ phosphor was synthesized by co-precipitation method. The crystalline structure of all synthesized phosphors was investigated by XRD. The result showed that all synthesized phosphors had a hexagonal crystal structure, which was the same as Y2O2S. The emission spectrum and excitation spectrum were measured, and the effect of Sm^3 ＋ molar ratio on the spectra was discussed. The emission spectra of the phosphors showed three emission peaks due to typical transitions of Sm^3 ＋ （4G5/2→6HJ ,J = 5/2, 7/2, 9/2）, and the emission peaks at 606 nm was stronger than others. With the increase of Sm^3 ＋ molar ratio, the emission intensity was strengthened. The excitation peaks were ascribed to the representative energy transition 4f→4f of Ti^4＋ phosphor prepared by co-precipitation method was Sm^3＋ ions. The results indicated that the Y2O2S ： Sm^3＋ , Mg^2＋ , an efficient long afterglow phosphor.
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| 关 键 词： | 长余辉磷光体 制备 共沉淀法 发射光谱 稀土元素 钇 钐 镁 钛 |
| 文章编号： | 1002-0721（2007）01-0023-04 |
| 收稿时间： | 19 April 2006 |
| 修稿时间： | 2006-04-192006-07-01 |
Co-Precipitation Synthesis and Spectral Characteristics of Long Afterglow Phosphor Y2O2S:Sm, Mg, Ti |
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| Yang , Li Xingmin, Liu Chong, Li Xu, Yang Yong, Xu Xiaoling,Li Panlai.Co-Precipitation Synthesis and Spectral Characteristics of Long Afterglow Phosphor Y2O2S:Sm, Mg, Ti[J].Journal of Rare Earths,2007,25(1):23-26. |
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| Authors: | Yang Li Xingmin Liu Chong Li Xu Yang Yong Xu Xiaoling Li Panlai |
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| Affiliation: | 1. College of Physics Science and Technology, Hebei University, Baoding 071002, China; 2. Handan Municipal Information Industry Bureau, Handan 056002, China; 3. College of Graduate, Hebei University, Baoding 071002, China |
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| Abstract: | Y2O2S:Sm3+, Mg2+, Ti4+ phosphor was synthesized by co-precipitation method. The crystalline structure of all synthesized phosphors was investigated by XRD. The result showed that all synthesized phosphors had a hexagonal crystal structure, which was the same as Y2O2S. The emission spectrum and excitation spectrum were measured, and the effect of Sm3+ molar ratio on the spectra was discussed. The emission spectra of the phosphors showed three emission peaks due to typical transitions of Sm3+(4G5/2→6HJ, J=5/2, 7/2, 9/2), and the emission peaks at 606 nm was stronger than others. With the increase of Sm3+ molar ratio, the emission intensity was strengthened. The excitation peaks were ascribed to the representative energy transition 4f→4f of Sm3+ ions. The results indicated that the Y2O2S:Sm3+,Mg2+, Ti4+ phosphor prepared by co-precipitation method was an efficient long afterglow phosphor. |
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| Keywords: | Y2O2S:Sm3 Mg2 Ti4 co-precipitation emission spectra excitation spectra rare earths |
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