Solvothermal synthesis and tailored upconversion emission of monodisperse ultrasmall face-centered cubic Sr2YF7 nanocrystals
文献类型：期刊论文
| 作者 | Ma, Mo1,2; Xu, Chang-fu1,2; Yang, Li-wen1,2; Yang, Qi-bin1,2; Lin, Jian-guo1,2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2012-06-05 |
| 卷号 | 525页码:97-102 |
| 关键词 | Sr2yf7 Nanocrystal Upconversion Monodisperse Ultrasmall |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2012.02.080 |
| 文献子类 | Article |
| 英文摘要 | Monodisperse Sr2YF7 nanocrystals with the size of sub-10 nm were synthesized via a solvothermal method by using oleate as a capping ligand. X-ray diffraction and transmission electron microscopy assays reveal that the as-synthesized Sr2YF7 nanocrystals are face-centered cubic structure with the cell parameter a = 5.704 angstrom. Intense upconversion luminescence can be observed in Er3+/Yb3+ and Tm3+/Yb3+ codoped Sr2YF7 nanocrystals under the excitation of a 980 nm laser and near-white-color emission can be obtained in Er3+/Tm3+/Yb3+ tri-doped Sr2YF7 nanocrystals. Energy transfer (ET) from Yb3+ to Er3+ and Tm3+ is mainly responsible to pump Er3+ and Tm3+ from the ground state to higher states. In Er3+/Tm3+/Yb3+ tri-doped Sr2YF7 nanocrystals, ET from Tm3+ to Er3+ leads average three-photon process, which renders the 523 nm emission. (C) 2012 Elsevier B. V. All rights reserved. |
| WOS关键词 | RARE-EARTH FLUORIDE ; HYDROTHERMAL SYNTHESIS ; YB3+ NANOCRYSTALS ; QUANTUM DOTS ; NANOPARTICLES ; LUMINESCENCE ; PHOTOLUMINESCENCE ; PHASE ; IONS ; RE |
| 语种 | 英语 |
| WOS记录号 | WOS:000302574800018 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://119.78.100.186/handle/113462/47777]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xu, Chang-fu |
| 作者单位 | 1.Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Peoples R China 2.Xiangtan Univ, Inst Modern Phys, Fac Mat & Photoelect Phys, Xiangtan 411105, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Mo,Xu, Chang-fu,Yang, Li-wen,et al. Solvothermal synthesis and tailored upconversion emission of monodisperse ultrasmall face-centered cubic Sr2YF7 nanocrystals[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2012,525:97-102. |
| APA | Ma, Mo,Xu, Chang-fu,Yang, Li-wen,Yang, Qi-bin,&Lin, Jian-guo.(2012).Solvothermal synthesis and tailored upconversion emission of monodisperse ultrasmall face-centered cubic Sr2YF7 nanocrystals.JOURNAL OF ALLOYS AND COMPOUNDS,525,97-102. |
| MLA | Ma, Mo,et al."Solvothermal synthesis and tailored upconversion emission of monodisperse ultrasmall face-centered cubic Sr2YF7 nanocrystals".JOURNAL OF ALLOYS AND COMPOUNDS 525(2012):97-102. |
入库方式： OAI收割
来源：近代物理研究所
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