| CexGdyTb1-x-yP5O14晶体生长及其光谱 |
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| 引用本文： | 洪广言,白卫.CexGdyTb1-x-yP5O14晶体生长及其光谱[J].发光学报,1991,12(1):73-78. |
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| 作者姓名： | 洪广言 白卫 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 采用蒸发溶液法从磷酸溶液中生长出一系列CexGdyTb1-x-yP5O14晶体.测定了它们的结构.它们属于单斜晶系,空间群P21/c.测定了Ce0.9Gd0.1P5O14、Ce0.9Tb0.1P5O14和La0.8Gd0.1Tb0.1P5O14等晶体的光谱.首次观察到,将Gd加入CexTb1-xP5O14晶体中形成.CexGdyTb1-x-yP5O14时阻碍了Ce3+→Tb3+的能量传递,导致Ce3+的发射峰增强,Tb3+的5D4-FJ发射峰减弱、而5D3-7FJ发射峰增强.
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| 关 键 词： | 晶体生长 光谱 五磷酸盐 Ce^3＋ |
| 收稿时间： | 1990-02-22 |
GROWTH AND SPECTRA OF CexGdyTb1-xP5O14 CRYSTAL |
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| Hong Guangyan,Bai Wei.GROWTH AND SPECTRA OF CexGdyTb1-xP5O14 CRYSTAL[J].Chinese Journal of Luminescence,1991,12(1):73-78. |
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| Authors: | Hong Guangyan Bai Wei |
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| Institution: | Changchun Institute of Applied Chemistry, Academia Sinica |
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| Abstract: | A series of CexGdyTb1-xP5O14 crystals have been grown from phosphoric acid solution by an evaporation method. The structure of crystal belongs to monoclinic system, space group P21/c. The spectra of CexGdyTb1-xP5O14 crystals were investigated. It was found that with the incorporation of Gd to CexGdyTb1-xP5O14 crystal (formed CexGdyTb1-xP5O14) under the same condition a strong emission of Ce3+ reappears,at the same the emission of Tb3+ from 5D4-7F1 becomes much weaker and the emission of Tb3+ from 5D3-7F1 appears. The result is reported for the first time. |
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