Controlled synthesis of YF3 nanocrystals with multiple morphologies in ethylene glycol

被引：10

作者：

Li, Congling ^{[1
,2
]}

Mei, Yuanyuan ^{[1
]}

Xie, Jianjian ^{[1
]}

Dai, Wei ^{[2
]}

Du, Gaohui ^{[2
]}

Li, Zhengquan ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Dept Mat Phys, Jinhua 321004, Zhejiang, Peoples R China

[2] Zhejiang Normal Univ, Inst Phys Chem, Jinhua 321004, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 560卷

基金：

中国国家自然科学基金;

关键词：

Lanthanide nanocrystals; Controlled synthesis; Crystal growth; Photoluminescent; Upconversion; UP-CONVERSION; FLUORIDE NANOPARTICLES; LUMINESCENCE; SHAPE;

D O I：

10.1016/j.jallcom.2013.01.105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

YF3 is an important host matrix for lanthanides doping to give both strong down- and up-conversion luminescence with high quantum efficiency. Controlled synthesis of YF3 nanocrystals is an efficient route to obtain different YF3 nanocrystals satisfying for different applications and controlling their fluorescence. Here we present a facile approach to selectively synthesize different YF3 nanocrystals using ethylene glycol (EG) as solvent. Five distinct morphologies can be conveniently obtained through changing the fluoride sources and chelating ligands in the EG solution. The prepared products were characterized and their formation mechanisms were proposed. After doped with different lanthanides, these samples can give both down- and up-conversion luminescence, suggesting that they are good nanoparticulate hosts. A comparison of fluorescent intensities between different products has been made, offering us an opportunity to study the relationship between fluorescence intensities and morphologies of YF3 nanostructures. Our results suggest that formation of assemblies is a feasible way to enhance the fluorescence of lanthanide nanocrystals in addition to the size control. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：10 / 14

页数：5

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