Hydrothermal preparation and luminescence of LaF3:Eu3+ nanoparticles

Jian-Xin Meng; Mao-Feng Zhang; Ying-Liang Liu; Shi-Qing Man

doi:10.1016/j.saa.2006.02.025

Hydrothermal preparation and luminescence of LaF3:Eu3+ nanoparticles

Spectrochim Acta A Mol Biomol Spectrosc. 2007 Jan;66(1):81-5. doi: 10.1016/j.saa.2006.02.025. Epub 2006 Mar 2.

Authors

Jian-Xin Meng¹, Mao-Feng Zhang, Ying-Liang Liu, Shi-Qing Man

Affiliation

¹ Department of Chemistry, Institute of Nano-chemistry, Jinan University, Guangzhou 510632, China. tmjx@jnu.edu.cn

PMID: 16815080
DOI: 10.1016/j.saa.2006.02.025

Abstract

LaF3:Eu3+ nanoparticles were prepared by a simple hydrothermal process at low temperature and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and fluorescence spectrum. Well-dispersed nanoparticles with an average size of 30 nm and a hexagonal shape were obtained. The influences of reaction temperature and time on the preparation and luminescence of LaF3:Eu3+ nanoparticles were investigated. Luminescent quenching occurred at a much higher concentration ( approximately 25mol%) and stronger luminescent intensity than in bulk LaF3:Eu3+. Fluorescence intensity of the LaF3:Eu3+ nanoparticles varied remarkably with calcination temperatures. It was found that samples without any further calcinations can emit quite strong fluorescence.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Europium / chemistry*
Fluorides / chemistry*
Hot Temperature
Lanthanum / chemistry*
Luminescence
Microscopy, Electron, Transmission
Nanoparticles / chemistry*
Particle Size
X-Ray Diffraction

Substances

lanthanum trifluoride
Europium
Lanthanum
Fluorides