Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates
文献类型：期刊论文
| 作者 | X. G. Liu ; J. Du ; D. Y. Geng ; S. Ma ; J. M. Liang ; M. Tong ; Z. D. Zhang |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2008 |
| 卷号 | 457期号:1-2页码:517-521 |
| 关键词 | nanostructures X-ray diffraction luminescence magnetic measurements spray-pyrolysis nanocapsules films photoluminescence nanotrees powders alloys oxide zno |
| ISSN号 | 0925-8388 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32968]  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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