| 铈锶复合六角铝酸盐(Ce(0.7)Sr_(0.3))MgA1_(11)O_(18.85)的合成及发光性质 |
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| 引用本文： | 黄京根,胡建国,王惠琴,余兴海,贺贤芬,徐燕.铈锶复合六角铝酸盐(Ce(0.7)Sr_(0.3))MgA1_(11)O_(18.85)的合成及发光性质[J].复旦学报(自然科学版),1988(1). |
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| 作者姓名： | 黄京根 胡建国 王惠琴 余兴海 贺贤芬 徐燕 |
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| 作者单位： | 复旦大学材料科学系
(黄京根，胡建国，王惠琴，余兴海，贺贤芬)，复旦大学材料科学系(徐燕) |
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| 摘 要： | 本文报道一种新的紫外发光材料铈锶复合六角铝酸盐(Ce_(0.7)Sr_0.3)MgAl_(11)O_(18.85),它与SrAl_(12)O_(19)类质同晶,晶胞参数为:a=0.5590nm,c=2.203nm。与CeMgAl_(11)O_(19)比较,(Ce_(0.7)Sr_(0.8)MgAl_(11)O_(18.85)有更强的紫外发射效率。在该基质中,Ce~(3+)-Ce~(3+)之间能进行短程的能量迁移,迁移的步数大约为4～12。这种能量迁移可能是一种偶极一偶极相互作用。
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| 关 键 词： | 稀土化合物 铝酸盐 能量传递 发光材料。 |
PREPARATION AND LUMINESCENCE OF A NEW UV-EMITTING PHOSPHOR (Ce_(0.7)Sr_(0.2)) MgAI_(11)O_(18.85) |
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| Huang Jinggen,Hu Jianguo,Wang Huiqin,Yu Xinghai,He Xianfen,Xu Yan,.PREPARATION AND LUMINESCENCE OF A NEW UV-EMITTING PHOSPHOR (Ce_(0.7)Sr_(0.2)) MgAI_(11)O_(18.85)[J].Journal of Fudan University(Natural Science),1988(1). |
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| Authors: | Huang Jinggen Hu Jianguo Wang Huiqin Yu Xinghai He Xianfen Xu Yan |
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| Institution: | Institute of Materials Science |
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| Abstract: | The compound (Ce_(0.7)Sr_(0.3)) MgAl_(11)O_(18.85) showing efficient UV luminescence ofCe~(3+) was prepared.It is isostructural with hexagonal SrAl_(12)O_(10), with a=0.5590nmand c=0.2203nm. The efficiency of the luminescence was found to be somewhathigher than CeMgAl_(11)O_(10), and the Ce~(3+) emission has its maximum at 338nm, about10nm shorter than the latter. In contrast to CeMgAl_(11)O_(10), a short range Ce~(3+)-Ce~(3+)energy transfer may exist in the compound. The probability and the averaged numberof steps of Ce~(3+)-Ce~(3+) dipole-dipole energy transfer were estimated from the experi-mental results. |
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| Keywords: | rare earth compound aluminate energy transfer luminescence materials |
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