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Journal of Chemistry
Volume 2013, Article ID 683404, 6 pages
http://dx.doi.org/10.1155/2013/683404
Research Article

Synthesis of Blue-Green Phosphors Sr4Si3O8Cl4:Eu2+ by Gel-Combustion Method and Their Luminescent Properties

College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China

Received 29 June 2012; Accepted 7 September 2012

Academic Editor: Weiguo Dai

Copyright © 2013 Yong-Qing Zhai 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

: blue-green phosphors were synthesized by the gel-combustion method. The as-synthesized phosphors were analyzed and characterized by X-ray diffraction and fluorescence spectrophotometer. The results indicate that orthorhombic phase : has been formed after the precursor calcined at 900°C reductive temperature. The excitation spectrum of : is a broad band in the range of 250 ~ 450 nm and the main peak at 324 nm. The emission spectrum is also a broad band with the main emission peak at about 484 nm, which is ascribed to the typical 4f5 to 4 transition of . Moreover, the effects of the concentration of , the reductive temperature, and the doping amount of on luminescent properties were discussed.