VUV excited luminescence of europium activated calcium borophosphate prepared in air
Liang, HB; Su, Q; Tao Y(陶冶); Hu TD(胡天斗); Liu T(刘涛); Tao, Y; Hu, TD; Liu, T
刊名JOURNAL OF ALLOYS AND COMPOUNDS
2002
卷号334页码:#REF!
关键词VUV luminescence XAFS Eu2+ Eu3+ calcium borophosphate
学科分类Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
DOI10.1016/S0925-8388(01)01787-X
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.
文章类型Article
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.
类目[WOS]Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别SCI
WOS记录号WOS:000173810700046
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227467
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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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!.
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