| Cd2Ge7O16中Tb的长余辉发光特性 |
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| 引用本文： | 易守军,刘应亮,张静娴,袁定胜,容建华,黄浪欢. Cd2Ge7O16中Tb的长余辉发光特性[J]. 无机化学学报, 2004, 20(3): 247-250 |
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| 作者姓名： | 易守军 刘应亮 张静娴 袁定胜 容建华 黄浪欢 |
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| 作者单位： | 暨南大学化学系,广州,510632 |
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| 基金项目： | 国家自然科学基金资助项目(No.59982003，20171018)，广东省自然科学基金资助项目(No.990484，013201)。 |
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| 摘 要： | 本文研究了Cd2Ge7O16∶Tb3+材料的发光及其长余辉性质。指出Tb3+的发光是该离子的 5D3- 7DJ、 5D4- 7DJ两种跃迁产生的；随着掺杂浓度的增加 5D4- 7DJ跃迁增强，发光颜色由蓝变绿。并把该材料的长余辉性质归结为基质结构中有电子陷阱和空穴陷阱。提出余辉机理模型。
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| 关 键 词： | Cd2Ge7O16∶Tb3+ 长余辉 发光机理 |
| 修稿时间： | 2003-08-20 |
Long Afterglow Property of Cd2Ge7O16:Tb3+ |
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| YI Shou-Jun,LIU Ying-Liang,ZHANG Jing-Xian,YUAN Ding-Sheng,RONG Jian-Hua and HUANG Lang-Huan. Long Afterglow Property of Cd2Ge7O16:Tb3+[J]. Chinese Journal of Inorganic Chemistry, 2004, 20(3): 247-250 |
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| Authors: | YI Shou-Jun LIU Ying-Liang ZHANG Jing-Xian YUAN Ding-Sheng RONG Jian-Hua HUANG Lang-Huan |
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| Affiliation: | Chemistry Department of Jinan University, Guangzhou 510632,Chemistry Department of Jinan University, Guangzhou 510632,Chemistry Department of Jinan University, Guangzhou 510632,Chemistry Department of Jinan University, Guangzhou 510632,Chemistry Department of Jinan University, Guangzhou 510632 and Chemistry Department of Jinan University, Guangzhou 510632 |
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| Abstract: | Luminescence and long afterglow property of Cd2Ge7O16:Tb3 are investigated in the paper. It is shown that luminescence of Cd2Ge7O16:Tb3 is due to the 5D3-7FJ, 5D4-7FJ transitions of Tb3 ions. With the increasing of Tb3 concentration, the intensity of the 5D3-7FJ emission is decreased, while the intensity of the 5D4-7FJ emission is increased. The color of Cd2Ge7O16:Tb3 is becoming green increasely. Long afterglow property of Cd2Ge7O16:Tb3 is due to the electron trap and hole trap of Cd2Ge7O16:Tb3 . We create a model of afterglow mechanism. |
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| Keywords: | Cd2Ge7O16:Tb3 long afterglow luminescence mechanism |
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