White upconversion of rare-earth doped ZnO nanocrystals and its dependence on size of crystal particles and content of Yb3+ and Tm3+
文献类型：期刊论文
| 作者 | Liu, Yunxin; Xu, Changfu; Yang, Qibin1 |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2009-04-15 |
| 卷号 | 105页码:6 |
| 关键词 | combustion synthesis erbium II-VI semiconductors nanostructured materials nanotechnology photoluminescence thulium wide band gap semiconductors ytterbium zinc compounds |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.3088881 |
| 英文摘要 | Rare earth (RE) doped ZnO nanocrystals were synthesized by chemical combustion method. Bright white upconversion (UC) luminescence with the CIE coordinates close to (0.33, 0.33) was obtained in Er+Tm+Yb tridoped ZnO nanocrystals under the excitation of a cost-effective 980 nm single-wavelength laser diode. The overall and relative UC luminescence intensities of RE doped ZnO nanocrystals were found to be depended highly on the diameter of crystal particles and the concentration of Yb3+ and Tm3+, for which the involved mechanisms were demonstrated. The investigation based on UC spectra, simplified energy level diagram, and excitation power dependence indicated that the remarkable enhancement of the green emission of the RE tridoped sample was due to a dual sensitization of Er3+ by Yb3+ and Tm3+ ions. The RE tridoped ZnO nanocrystals with the CIE coordinates close to (0.33, 0.33) are potentially suitable for the widely realistic application as the multicolor fluorescent labels, due to a fact that they could be cheaply and easily obtained and excited cost effectively. |
| WOS关键词 | M EMISSION DYNAMICS ; ZINC-OXIDE ; LUMINESCENCE PROPERTIES ; ER3+-ZRO2 NANOCRYSTALS ; THIN-FILMS ; BLUE ; MU ; LITHIUM ; GLASS ; IONS |
| 资助项目 | National 863 Project of China[2002AA324030] ; Scientific Foundation of Education Department of Hunan Province China[06C818] ; Postgraduate Innovation Foundation of Hunan Province China[S2008YJSCX12] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000268064700177 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | National 863 Project of China ; Scientific Foundation of Education Department of Hunan Province China ; Postgraduate Innovation Foundation of Hunan Province China |
| 源URL | [http://119.78.100.186/handle/113462/30970]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Yang, Qibin |
| 作者单位 | 1.Xiangtan Univ, Inst Modern Phys, Xiangtan 411105, Peoples R China 2.Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yunxin,Xu, Changfu,Yang, Qibin. White upconversion of rare-earth doped ZnO nanocrystals and its dependence on size of crystal particles and content of Yb3+ and Tm3+[J]. JOURNAL OF APPLIED PHYSICS,2009,105:6. |
| APA | Liu, Yunxin,Xu, Changfu,&Yang, Qibin.(2009).White upconversion of rare-earth doped ZnO nanocrystals and its dependence on size of crystal particles and content of Yb3+ and Tm3+.JOURNAL OF APPLIED PHYSICS,105,6. |
| MLA | Liu, Yunxin,et al."White upconversion of rare-earth doped ZnO nanocrystals and its dependence on size of crystal particles and content of Yb3+ and Tm3+".JOURNAL OF APPLIED PHYSICS 105(2009):6. |
入库方式： OAI收割
来源：近代物理研究所
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