Table of Contents
Indian Journal of Materials Science
Volume 2015, Article ID 845065, 8 pages
http://dx.doi.org/10.1155/2015/845065
Research Article

Synthesis and Optical Characterization of Europium Doped MY2O4 (M = Mg, Ca, and Sr) Nanophosphors for Solid State Lightening Applications

1Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India
2Departamento de Física, Universidade do Minho, Gualtar, 4710-057 Braga, Portugal

Received 31 May 2015; Revised 29 July 2015; Accepted 30 July 2015

Academic Editor: Harvey Amorín

Copyright © 2015 Devender Singh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Trivalent europium doped yttriate nanophosphors were synthesized by rapid facile gel combustion technique. The photoluminescence (PL) properties of these Eu3+ activated MY2O4 (M = Mg, Ca, and Sr) nanophosphors showed red luminescence and exhibited excellent emission properties in their respective regions of color coordinates. Based on the excitation wavelengths multiple emission peaks were obtained. The main peak in the emission spectra was ascribed to 5D07F2 transition of Eu3+ ion. The structural and morphological studies were performed by the measurements of X-ray diffraction profiles, scanning electron microscope (SEM) images, and transmission electron microscope (TEM) micrographs. Furthermore, the effects of additional heating on the different host lattices of these phosphors were also studied.