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The relationships between crystal structure of alkaline earth metal hexagonal aluminate and 4f-5d transitions of Ce3+ and Tb3+ ions
Zhang, ZY; Zhang, YH; Li, X; Xu, HH; Huang, Y; Xu JH(徐建华); Huang Y(黄艳)
2008
发表期刊JOURNAL OF NON-CRYSTALLINE SOLIDS
卷号354期号:18页码:1943-1947
通讯作者[Zhang, Zhongyi ; Zhang, Yunhong] Beijing Inst Technol, Inst Chem Phys, Beijing 100081, Peoples R China ; [Zhang, Zhongyi ; Li, Xiaoh] Baotou Res Inst Rare Earth, Baotou 014030, Inner Mongolia, Peoples R China ; [Xu, Hanhua ; Huang, Yan] Chinese Acad Sci, Inst High Energy Phys, Lab Beijing Synchrotron Radiat, Beijing 100039, Peoples R China
摘要The Mg-Sr-Ba hexagonal aluminates (MgSrBa)Al12O19 doped with either Ce3+ or Tb3+ ion have been synthesized by solid-state reaction. Crystal structure variations with the increasing Ba2+ concentration have been thoroughly studied. When the concentration of Ba2+ reaches 0.39, the crystal structure becomes the ideal magnetoplumbite-type (No. PDF #80-1195), however, it becomes the same structure as BaMgAl10O17 with space group P6(3)/mmc when Sr2+ is completely replaced by Ba2+ ions. In Ce3+ doped compounds, the emission peak of the Ce3+ ion is gradually red-shifted when the concentration of Mg2+ ion increases, while the 4f-5d transition of Ce3+ at 260 nm splits into five components. In the Tb3+ doped compounds, the spin-allowed and spin-forbidden 4f-5d transitions of Tb3+ have been observed. The intensity of the spin-forbidden 4f-5d transition is gradually increased with decreasing Sr2+ concentration and becomes dominant when Sr2+ is completely replaced by Ba2+. These experimental observations are also discussed in the context and match well with the theoretical calculations of 4-5d transitions of Tb3+. (c) 2008 Elsevier B.V. All rights reserved.
文章类型Article
关键词synchrotron radiation X-ray diffraction crystal structure Ce3+ Tb3+ 4f-5d transitions luminescence
学科领域Materials Science
DOI10.1016/j.jnoncrysol.2007.12.007
研究领域[WOS]Materials Science
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语种英语
WOS类目Materials Science, Ceramics ; Materials Science, Multidisciplinary
WOS记录号WOS:000255504300001
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被引频次:7[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/311005/239590
专题多学科研究中心
粒子天体物理中心
核技术应用研究中心
作者单位中国科学院高能物理研究所
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Zhang, ZY,Zhang, YH,Li, X,et al. The relationships between crystal structure of alkaline earth metal hexagonal aluminate and 4f-5d transitions of Ce3+ and Tb3+ ions[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2008,354(18):1943-1947.
APA Zhang, ZY.,Zhang, YH.,Li, X.,Xu, HH.,Huang, Y.,...&黄艳.(2008).The relationships between crystal structure of alkaline earth metal hexagonal aluminate and 4f-5d transitions of Ce3+ and Tb3+ ions.JOURNAL OF NON-CRYSTALLINE SOLIDS,354(18),1943-1947.
MLA Zhang, ZY,et al."The relationships between crystal structure of alkaline earth metal hexagonal aluminate and 4f-5d transitions of Ce3+ and Tb3+ ions".JOURNAL OF NON-CRYSTALLINE SOLIDS 354.18(2008):1943-1947.
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