Morphology and phase selective synthesis of EuF3 nanostructures by polyelectrolyte assisted chemical reaction and their optical properties

被引：6

作者：

Cui, Tianfeng

Zhang, Hui

Du, Ning

Chen, Bingdi

Li, Dongshen

Yang, Deren ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 115卷 / 2-3期

关键词：

Nanostructures; Chemical synthesis; Crystal structure; Luminescence; LN(3+)-DOPED LAF3 NANOPARTICLES; HYDROTHERMAL SYNTHESIS; UP-CONVERSION; FLUORIDE NANOPARTICLES; SINGLE-CRYSTALLINE; NANOCRYSTALS; NANORODS; FLUORESCENCE; SIZE;

D O I：

10.1016/j.matchemphys.2009.01.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A polyelectrolyte assisted chemical approach has been developed to synthesize well-dispersed EuF3 nanostructures with the controlled morphology and crystalline phase. It is indicated that the hexagonal doughnut-like EuF3 nanostructures with diameters of 200-300nm have been spontaneously transformed into orthorhombic spindle-like EuF3 nanostructures with diameters of 100nm and lengths of 250-400 nm with the extension of the reaction time. The negatively charged polyelectrolyte such as sodium poly(styrenesulfonate) (PSS) plays the critical role for the morphology and crystalline phase transformation of EuF3. Moreover, the different EuF3 nanostructures have been characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and photoluminescence (PL). Finally, the formation mechanism of the different EuF3 nanostructures has been primarily discussed. (C) 2009 Published by Elsevier B.V.

引用

页码：562 / 566

页数：5

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[11] Synthesis of lanthanide fluoride nanoparticles of varying shape and size [J].