Polyol-mediated synthesis of water-soluble LaF3:Yb,Er upconversion fluorescent nanocrystals

被引：62

作者：

Wei, Yang ^{[1
]}

Lu, Fengqi ^{[1
]}

Zhang, Xinrong ^{[1
]}

Chen, Depu ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 06期

关键词：

nanomaterials; phosphors; upconversion fluorescence;

D O I：

10.1016/j.matlet.2006.07.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Well-crystallized LaF3:Yb,Er nanoparticles were prepared by the polyol method and three kinds of polyols (glycol, diethylene glycol and glycerol) were chosen as the reaction medium respectively. All of the obtained LaF3:Yb,Er nanoparticles have roughly spherical shapes, and the average sizes of these nanoparticles ranged from 5 to 7 nm. These nanoparticles could be well dispersed in water or ethanol to form colloidal solutions. When these nanoparticles were excited by the 980 nm laser, several upconversion emissions were observed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1337 / 1340

页数：4

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