Structure refinement of Lu2WO6 and luminescent properties of Eu3+, Pr3+ doped Lu2WO6

被引：31
作者：
Zhang, Zhijun [1 ,2 ]
Zhang, Hui [1 ,2 ]
Duan, Chengjun [1 ,2 ]
Yuan, Junlin [1 ,2 ]
Wang, Xiaojun [1 ,2 ]
Xiong, Dingbang [1 ,2 ]
Chen, Haohong [1 ,2 ]
Zhao, Jingtai [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 466卷 / 1-2期
关键词：
Luminescence; X-ray excitation; UV excitation; Scintillation;
D O I：
10.1016/j.jallcom.2007.11.050
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The crystal structure of Lu2WO6 was determined from Rielveld refinement of X-ray powder diffraction data. It crystallizes in the monoclinic system belonging to space group P2/c (No. 13) with lattice parameters: a = 7.5180(1) angstrom, b = 5.2675(1) angstrom, c = 11.2245(2) angstrom, beta = 104.61 (0)degrees, V= 430.14(11) angstrom(3), Z = 4. The conventional R indices obtained are R-p = 0.090, R-wp = 0.119 and R-B = 0.075. The infinite chain comprised of Lu(2)O-8 dodecahedra and Lu(3)O-7 decahedra makes up the layer A, and the infinite straight chain is built of four-ring of polyhedra in which the WO6 and Lu(1)O-8 groups alternate in layer B, finally, this structure is formed by stacking of these two layers with edge-shared. The X-ray and UV excited luminescence properties of Eu3+ and Pr3+ in Lu2WO6 were investigated: Eu3+ shows high luminescent efficiency in emitting red light, and Pr3+ is less efficient in emitting orange light. The luminescent mechanism of Eu3+ and Pr3+ in the matrix of Lu2WO6 is much different. (c) 2007 Published by Elsevier B.V.
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页码：258 / 263
页数：6
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