Investigation on luminescence properties of Ln3+ doped Sr3EuMgSi2O8 （Ln=Dy,Er,Ho）
来源期刊：JOURNAL OF RARE EARTHS2012年第11期
论文作者：李娜娜 胡义华 吴浩怡 陈丽 王小涓
文章页码：1079 - 1083
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.
李娜娜，胡义华，吴浩怡，陈丽，王小涓
School of Physics and Optoelectronic Engineering,Guangdong University of Technology
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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