Paper Title:
The Influence of BaF2 Flux Concentration on the Luminescence of Sr3SiO5:Eu2+
  Abstract

Silicate strontium phosphor for white light LEDs was synthesized by high temperature solid-state method. The structure, surface, excitation and emission spectra of Sr3SiO5: Eu2+ phosphor which contain different mass fractions of BaF2 were measured. The results show that BaF2 quantity affects the structure, surface and spectra of Sr3SiO5: Eu2+ sample. The sample has the best properties when the BaF2 concentration comes to 2.0wt%. The structure of sample is tetragonal phase Sr3SiO5. The emission and excitation spectra peaks locate respectively at 575nm and 537nm. The samples can be excited by InGaN blue chip. The emission peaks appeared apparent red shift with the increase of BaF2 concentration. A white light emission spectrum with good color rendition was obtained by coupling the phosphor with blue chip.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
1400-1404
DOI
10.4028/www.scientific.net/AMR.239-242.1400
Citation
G. F. Xu, Q. S. Liu, L. Zhao, D. D. Cao, R. Wang, Y. P. Luo, Z. Guo, X. Y. Zhang, "The Influence of BaF2 Flux Concentration on the Luminescence of Sr3SiO5:Eu2+", Advanced Materials Research, Vols. 239-242, pp. 1400-1404, 2011
Online since
May 2011
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Price
$32.00
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