Self-assembly NaGdF4 nanoparticles: phase controlled synthesis, morphology evolution, and upconversion luminescence properties

被引：1
|
作者：
Zi, Lu [1 ]
Zhang, Dan [1 ]
De, Gejihu [1 ,2 ,3 ]
机构：
[1] Inner Mongolia Normal Univ, Coll Chem & Environm Sci, Hohhot 010022, Peoples R China
[2] Inner Mongolia Key Lab, Phys & Chem Funct Mat, Hohhot 010022, Peoples R China
[3] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2016年 / 3卷 / 02期
基金：
美国国家科学基金会;
关键词：
synthesis; self-assemble; alpha-NaGdF4; nanoparticles; upconversion; FLUORIDE NANOCRYSTALS; YB3+; ER3+;
D O I：
10.1088/2053-1591/3/2/025009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cubic NaGdF4:Yb0.2Er0.02 (alpha-NaGdF4), self-assembly cubic NaGdF4:Yb0.2Er0.02, and high-resolution structure of hexagonal NaGdF4:Yb0.2Er0.02 (beta-NaGdF4) nanoparticles are prepared via the co-thermolysis of Gd(CF3COO)(3) and CF3COONa in the presence of 1-octadecene as stabilizer and oleic acid as ligand. Transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), x-ray power diffraction (XRD), and Hitachi F-4600 fluorescence spectrophotometer are used for the characterization of the samples. The results show that by tuning the ratio of CF3COONa/Gd(CF3COO)(3) and the reaction temperature, we can control the crystal phase, the relative intensity of upconversion luminescence of nanoparticles, and the morphology evolution of self-assembled alpha-NaGdF4 nanoparticles.
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页数：8
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