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


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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.



Advanced Materials Research (Volumes 197-198)

Edited by:

Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng




P. D. Han et al., "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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