Paper Title:
Effect of Doping Concentration on the up-Conversion Luminescent Properties of Y2O2S:Yb, Tm Phosphors
  Abstract

Up-conversion luminescent materials of Y2O2S: Yb, Tm with different doping concentrations of Tm3+ ion (0.5 mol%–4 mol %) and Yb3+ ion (4 mol%–16 mol %) were prepared by flux method. As Tm3+ doping concentration was 1 mol% and Yb3+ doping concentration was 8 mol%, the blue and red up-conversion luminescent intensity reached the maximum. The concentration quenching of Tm3+ was due to the reducing of the distance between Tm3+ ions and the cross-relaxation increasing. The concentration quenching of Yb3+ was attributed to increasing of nonradiative transition. The blue emission intensity of 1G43H6 was always weaker than the red emission intensity of 3F33H6, and the blue emission intensity of 1G43H6 is similar with the red emission intensity of 1G43F4.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
558-562
DOI
10.4028/www.scientific.net/AMR.197-198.558
Citation
P. D. Han, X. G. Huang, Q. T. Zhang, "Effect of Doping Concentration on the up-Conversion Luminescent Properties of Y2O2S:Yb, Tm Phosphors", Advanced Materials Research, Vols. 197-198, pp. 558-562, 2011
Online since
February 2011
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$32.00
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