Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates

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	Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates
	X. G. Liu; J. Du; D. Y. Geng; S. Ma; J. M. Liang; M. Tong; Z. D. Zhang
	2008
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	457 期号:1-2 页码:517-521
摘要	Co-doped Y2O3 optical functional nanoparticles with size of 4-10 nm have been synthesized by the plasma arc-discharge method. Meanwhile, novel three-dimensional squama-like macro-aggregates were self-assembled by disordered nanoparticles synthesized simultaneously in the arcdischarge process. The formation mechanism of the aggregates is ascribed to the periodic coagulation of Y nanoparticles. The valence states of Co in Y2O3 lattice can be determined as +2 from XPS spectrum with an etching depth of 6 nm. For Co-doped Y2O3 nanoparticles, upon excitation with 426 nm, a red emission (620 nm) has been observed which originates from (4)A(2) (F-4) -> T-4(1) (P-4) d-d transitions of Co2+ ions in tetrahedral co-ordination. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	[liu, x. g.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, xg (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;liuxg@imr.ac.cn
关键词	Nanostructures X-ray Diffraction Luminescence Magnetic Measurements Spray-pyrolysis Nanocapsules Films Photoluminescence Nanotrees Powders Alloys Oxide Zno
URL	查看原文
WOS记录号	WOS:000256124900091
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32968
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. G. Liu,J. Du,D. Y. Geng,et al. Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates[J]. Journal of Alloys and Compounds,2008,457(1-2):517-521.
APA	X. G. Liu.,J. Du.,D. Y. Geng.,S. Ma.,J. M. Liang.,...&Z. D. Zhang.(2008).Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates.Journal of Alloys and Compounds,457(1-2),517-521.
MLA	X. G. Liu,et al."Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates".Journal of Alloys and Compounds 457.1-2(2008):517-521.