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Green long-after-glow luminescence of Tb3+in Sr2SiO4
作者姓名:王齐  邱建备  宋志国  周大成  徐旭辉
基金项目:supported by the National Natural Science Foundation of China(Grant Nos.51272097,61265004,and 61265007)
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.

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
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.
Keywords:long-after-glow luminescence  Tb+  SrSiO
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