| Investigation on luminescence properties of Ln^3＋ doped Sr3EuMgSi2O8 （Ln=Dy, Er, Ho） |
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| 引用本文： | 李娜娜,胡义华,吴浩怡,陈丽,王小涓.Investigation on luminescence properties of Ln^3＋ doped Sr3EuMgSi2O8 （Ln=Dy, Er, Ho）[J].中国稀土学报(英文版),2012,30(11):1079-1083. |
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| 作者姓名： | 李娜娜 胡义华 吴浩怡 陈丽 王小涓 |
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| 作者单位： | School of Physics and Optoelectronic Engineering,Guangdong University of Technology |
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| 基金项目： | supported by National Natural Science Foundation of China (21271049,21071034) |
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| 摘 要： | The luminescent properties of Sr2.97MgSi2O8:Eu2+0.01 phosphors were investigated with different Ln3+0.02(Ln3+:Dy3+,Er3+,Ho3+) co-dopants. The co-dopants had no influence on both the structure of the lattice and the position of the emission peak. However, the afterglow properties of samples were enhanced with different co-dopants. The afterglow duration of the Dy3+ co-doped sample was longer than that of the others. Furthermore, the co-doping samples had stronger thermoluminescence (TL) intensity and therefore longer afterglow duration. At last, the self-reduction of Eu3+→Eu2+ was observed in an silicate compound of Sr3-xMgSi2O8:xEu phosphor in air condition. This is the first time to show a blue long afterglow phosphor synthesized avoiding reducing atmosphere.
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| 关 键 词： | afterglow phosphors Eu3+ and Ln3+ co-dopants Sr2.97MgSi2O8 rare earths |
| 收稿时间： | 27 April 2012 |
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