VUV excited luminescence of europium activated calcium borophosphate prepared in air
文献类型：期刊论文
| 作者 | Liang, HB; Su, Q; Tao Y(陶冶) ; Hu TD(胡天斗); Liu T(刘涛); Tao, Y; Hu, TD; Liu, T
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2002 |
| 卷号 | 334页码:#REF! |
| 关键词 | VUV luminescence XAFS Eu2+ Eu3+ calcium borophosphate |
| 通讯作者 | Su, Q (reprint author), Chinese Acad Sci, Changchun Inst Appl Chem, Lab Rare Earth Chem & Phys, Changchun 130022, Jilin, Peoples R China. |
| 英文摘要 | XAFS (EXAFS and XANES) at Eu-L-3 edge were used to determine the local structure and the valences of europium in CaBPO5:Eu prepared in air. The results of EXAFS showed that the doped europium atoms were nine-coordinated by oxygen atoms and the distances of bond Eu-O were 2.39 Angstrom in the host lattice. XANES at Eu-L-3 edge exhibited that Eu2+ and Eu3+ coexisted in the matrix. The luminescent spectrum of the material excited by VUV at 147 nm presented a similar spectrum with that excited by f-f transition of Eu2+ at 396 nm and f-d transition of Eu2+ at 312 nm. The broad emission band due to both 4f(6)5d - 4f(7) transition of EU2+ and f - f transition of Eu3+ could be observed in emission spectra, which indicated that the trivalent europium ions were reduced in air in the matrix at high temperature by the defects [V-Cn]" formed by aliovalent substitution between Ca2+ and Eu3+ ions. The UV excitation spectrum showed the typical f-f transition of Eu3+ and f-d transition of Eu2+. The bands with the maxima at about 113 and 158 nm in VUV excitation spectrum were assigned to originate from the absorption of the host lattice. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Chemistry; Materials Science; Metallurgy & Metallurgical Engineering |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| WOS记录号 | WOS:000173810700046 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/227467]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Liang, HB,Su, Q,Tao Y,et al. VUV excited luminescence of europium activated calcium borophosphate prepared in air[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2002,334:#REF!. |
| APA | Liang, HB.,Su, Q.,陶冶.,胡天斗.,刘涛.,...&Liu, T.(2002).VUV excited luminescence of europium activated calcium borophosphate prepared in air.JOURNAL OF ALLOYS AND COMPOUNDS,334,#REF!. |
| MLA | Liang, HB,et al."VUV excited luminescence of europium activated calcium borophosphate prepared in air".JOURNAL OF ALLOYS AND COMPOUNDS 334(2002):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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