Green long-after-glow luminescence of Tb3+in Sr2SiO4 |
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作者姓名: | 王齐 邱建备 宋志国 周大成 徐旭辉 |
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基金项目: | supported by the National Natural Science Foundation of China(Grant Nos.51272097,61265004,and 61265007) |
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摘 要: | The green long-after-glow luminescence from Tb3+-doped Sr2SiO4 phosphors, which are synthesized by the high temperature solid state reaction in a reductive atmosphere, is observed in this paper. The results show that under ultraviolet excitation, the obtained phosphors produce an intense green-lighting-emission from the Tb3+, and the green-lighting long- after-glow luminescence related to Tb3+ can last half an hour after the irradiation source has been removed. Moreover, the effects of co-doping Li+, Dy3+, Er3+, Gd3+, and Yb3+ with Tb3+ on the decay properties and thermoluminescence properties are investigated to confirm the long-after-glow mechanism.
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关 键 词: | 长余辉发光 铽掺杂 固相反应合成 绿色照明 还原性气氛 衰变性质 荧光粉 紫外光 |
Green long-after-glow luminescence of Tb~(3+)in Sr_2SiO_4 |
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Abstract: | The green long-after-glow luminescence from Tb3+-doped Sr2SiO4phosphors, which are synthesized by the high temperature solid state reaction in a reductive atmosphere, is observed in this paper. The results show that under ultraviolet excitation, the obtained phosphors produce an intense green-lighting-emission from the Tb3+, and the green-lighting longafter-glow luminescence related to Tb3+can last half an hour after the irradiation source has been removed. Moreover,the effects of co-doping Li+, Dy3+, Er3+, Gd3+, and Yb3+with Tb3+on the decay properties and thermoluminescence properties are investigated to confirm the long-after-glow mechanism. |
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Keywords: | long-after-glow luminescence Tb+ SrSiO |
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