Lanthanide doping-facilitated growth of ultrasmall monodisperse Ba2LaF7 nanocrystals with excellent photoluminescence
文献类型：期刊论文
| 作者 | Xu, Chang-fu; Ma, Mo; Yang, Li-wen; Zeng, Song-jun; Yang, Qi-bin1 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2012-02-15 |
| 卷号 | 368页码:49-55 |
| 关键词 | Ba2laf7 Nanocrystals Doping Ultrasmall Photoluminescence |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2011.10.072 |
| 文献子类 | Article |
| 英文摘要 | Lanthanide doping not only works as sensitizer and activator, but also plays an important role to facilitate the growth of nanocrystal and to control the size, shape, and property of nanocrystals. Here, reported was the synthesis of monodisperse Ba2LaF7 nanocrystals with the size of sub-10 nm through a solvothermal method. We found the dopants of Ho3+, Er3+, or Yb3+ facilitated the growth of Ba2LaF7 nanocrystals obviously to a certain size within a shorter reaction time. Similar phenomenon can also be observed in the synthesis of LaF3 nanocrystals. We find that Ln(3+) (e.g., Ho3+, Er3+, or Yb3+) with smaller radius can reduce the nucleation energy and lead to heterogeneous nucleation, which favors the growth of Ba2LaF7 nanocrystals obviously. In addition, intense upconversion emission can be observed from Ln(3+)-doped Ba2LaF7 nanocrystals under the 980 nm laser excitation, providing great potential application in biological imaging. Especially, Ba2LaF7:Yb/Er (20/1 mol%) nanocrystals present more intense upconversion emission than alpha-NaYF4:Yb/Er (20/1 mol%) nanocrystals under the same conditions. (C) 2011 Elsevier Inc. All rights reserved. |
| WOS关键词 | RARE-EARTH FLUORIDE ; UP-CONVERSION ; HYDROTHERMAL SYNTHESIS ; QUANTUM DOTS ; SOLVOTHERMAL SYNTHESIS ; CUBIC-STRUCTURE ; SIZE CONTROL ; NANOPARTICLES ; PHASE ; NANOSTRUCTURES |
| 语种 | 英语 |
| WOS记录号 | WOS:000299490500007 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://119.78.100.186/handle/113462/48919]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Yang, Qi-bin |
| 作者单位 | 1.Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Peoples R China 2.Xiangtan Univ, Fac Mat & Photoelect Phys, Inst Modern Phys, Xiangtan 411105, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Chang-fu,Ma, Mo,Yang, Li-wen,et al. Lanthanide doping-facilitated growth of ultrasmall monodisperse Ba2LaF7 nanocrystals with excellent photoluminescence[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2012,368:49-55. |
| APA | Xu, Chang-fu,Ma, Mo,Yang, Li-wen,Zeng, Song-jun,&Yang, Qi-bin.(2012).Lanthanide doping-facilitated growth of ultrasmall monodisperse Ba2LaF7 nanocrystals with excellent photoluminescence.JOURNAL OF COLLOID AND INTERFACE SCIENCE,368,49-55. |
| MLA | Xu, Chang-fu,et al."Lanthanide doping-facilitated growth of ultrasmall monodisperse Ba2LaF7 nanocrystals with excellent photoluminescence".JOURNAL OF COLLOID AND INTERFACE SCIENCE 368(2012):49-55. |
入库方式： OAI收割
来源：近代物理研究所
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