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Journal of Nanomaterials
Volume 2015, Article ID 637124, 7 pages
http://dx.doi.org/10.1155/2015/637124
Research Article

Cathodo-, Thermo-, and Photoluminescent Properties of Nano-Y2O3:Eu3+ Fabricated by Controlled Combustion Synthesis

1Institute for Research and Development of High Technology, Duy Tan University, K7/25 Quang Trung, Hai Chau, Da Nang, Vietnam
2Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam

Received 26 December 2014; Revised 19 March 2015; Accepted 20 March 2015

Academic Editor: Shifeng Zhou

Copyright © 2015 Tran Kim Anh 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

Y2O3:Eu3+ nanophosphors were prepared through combustion reaction under controlled condition of the fuel ethylenediaminetetraacetic acid (EDTA-Na2) and in the temperature range from 350 to 700°C. The products were characterized by X-ray diffraction (XRD), field emission scattering electron microscopy (FESEM), and energy dispersive spectroscopy (EDS). The results showed that Y2O3:Eu3+ nanoparticles were successfully synthesized by combustion method at low temperature and in short reaction time. The light-emitting ability of Y2O3:Eu3+ nanoparticles upon the electron excitation has been studied at the potentials 5, 10, and 15 kV. The thermoluminescent glow curves have elucidated an intense peak at 117°C after UV exposure and at least two peaks at 125 and 336°C with Gamma irradiation. Photoluminescent spectra of Y2O3:Eu3+ nanoparticles exhibited strong red luminescent color with highest sharp band at 612 nm under excitation in ultraviolet at 254, 394 and in visible at 465 nm. The dependence of photoluminescent properties of Y2O3:Eu3+ nanoparticles on annealing temperature and concentration of Eu3+ was also studied.