Thermal Analysis And Luminescent Properties Of Sr2CeO4 blue phosphor

¹Department of Physics, S. V. S’s Dadasaheb Rawal College, Dondaicha, Dist: Dhule, 425408, India

²Applied Physics Department, Faculty of Technology and Engineering, M. S. University of Baroda, Vadodara 390001, India

³Department of Physics, M. J. College Jalgaon 425001, India

Adv. Mater. Lett., 2013, Current Issue, 4 (7), pp 577-581

DOI: 10.5185/amlett.2012.11457

Publication Date (Web): May 01, 2013

Copyright © IAAM-VBRI Press

E-mail: pzzambare@rediffmail.com

Abstract

In this paper we report Strontium Cerium Oxide (Sr₂CeO₄) blue phosphor was synthesized via solid state reaction method using strontium carbonate SrCO₃ and cerium oxide CeO2 as raw materials. The samples were characterized by Thermo analytical techniques (TG, DTA, DTG and DSC) in nitrogen atmosphere, Fourier transformation infrared (FTIR) spectroscopy, and Photoluminescence at room temperature. Thermal analysis indicates that Sr2CeO4 phosphor can be prepared at temperature higher than 1100 °C. In excitation spectra two excitation peaks were located at 262 and 399 nm respectively. The emission spectrum was a broad band peaking at 470 nm, which was suitable for the doping of rare earth ions. The color co-ordinates for the pure Sr₂CeO₄ were x = 0.1918 and y = 0.2483. This material has potential for applications in the field of emission devices.

Keywords

Solid state reaction, TG, DTA, FTIR, DTG, photoluminescence, X-ray diffraction.