Remarkable changes in the optical properties of CeO2 nanocrystals induced by lanthanide ions doping
文献类型：期刊论文
| 作者 | Wang Z ; Quan Z ; Lin J |
| 刊名 | inorganic chemistry
 |
| 出版日期 | 2007 |
| 卷号 | 46期号:13页码:5237-5242 |
| 关键词 | CERIUM OXIDE NANOPARTICLES ULTRAVIOLET-ABSORPTION SPECTRA SOL-GEL SYNTHESIS LATTICE-RELAXATION THIN-FILMS X-RAY SIZE PARTICLES SPECTROSCOPY TEMPERATURE |
| ISSN号 | 0020-1669 |
| 通讯作者 | lin j |
| 中文摘要 | highly uniform and well-dispersed ceo2 and ceo2:eu3+ (sm3+, tb3+) nanocrystals were prepared by a nonhydrolytic solution route and characterized by x-ray diffraction (xrd), transmission electron microscopy (tem), x-ray photoelectron spectra (xps), uv/vis absorption, and photoluminescence (pl) spectra, respectively. the result of xrd indicates that the ceo2 nanocrystals are well crystallized with a cubic structure. the tem images illustrate that the average size of ceo2 nanocrystals is about 3.5 nm in diameter. the absorption spectrum of ceo2:eu3+ nanocrystals exhibits red-shifting with respect to that of the undoped ceo2 nanocrystals. under the excitation of 440 nm (or 426 nm) light, the colloidal solution of the undoped ceo2 nanocrystals shows a very weak emission band with a maximum at 501 nm, which is remarkably enhanced by doping additional lanthanide ions (eu3+, tb3+, sm3+) in the ceo2 nanocrystals. the emission band is not due to the characteristic emission of the lanthanide ions but might arise from the oxygen vacancy which is introduced in the fluorite lattice of the ceo2 nanocrystals to compensate the effective negative charge associated with the trivalent ions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247304600020 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/13163]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang Z,Quan Z,Lin J. Remarkable changes in the optical properties of CeO2 nanocrystals induced by lanthanide ions doping[J]. inorganic chemistry,2007,46(13):5237-5242. |
| APA | Wang Z,Quan Z,&Lin J.(2007).Remarkable changes in the optical properties of CeO2 nanocrystals induced by lanthanide ions doping.inorganic chemistry,46(13),5237-5242. |
| MLA | Wang Z,et al."Remarkable changes in the optical properties of CeO2 nanocrystals induced by lanthanide ions doping".inorganic chemistry 46.13(2007):5237-5242. |
入库方式： OAI收割
来源：长春应用化学研究所
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