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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 5: 1033 - 1036

DOI: https://doi.org/10.3724/SP.J.1077.2008.01033

Research Paper

Effects of Temperature and Ytterbium Sensitizing on Upconversion Characteristics in Erbium-doped Tellurite Glasses

  • HONG Jun ,
  • NIE Qiu-Hua ,
  • DAI Shi-Xun ,
  • XU Tie-Feng ,
  • SHEN Xiang ,
  • ZHANG Xiang-Hua
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  • 1. Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China; 2. The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo 315211, China; 3. Université de Rennes I, Rennes, France 35042

Received date: 2007-11-13

  Revised date: 2008-01-23

  Online published: 2008-09-20

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Abstract

Tellurite glasses 75TeO2-20ZnO-(4.6-x)La2O3-0.4Er2O3-xYb2O3 (x=0, 0.4, 0.8, 2.0, 3.2, 4.0) were prepared by conventional melt-quenching method. The effects of temperature (8-300K) and the ytterbium concentration on upconversion characteristics were investigated. When the Yb3+ concentration is 2mol%, the upconversion emission intensities around 545nm and 657nm present 6-fold and 4-fold enhancement, respectively, compared with Er3+-doped glass at room temperature. The green emission intensities around 530nm present monotonic increase with increasing temperature from 8K to 300K. The green emission intensities around 545nm increase with increasing temperature from 8K to 80K and reach the maximum at around 80K, then decrease with increasing temperature from 80K to 300K. The characteristics of the red emission intensity around 657nm are similar to the green emission intensity around 545nm. The effects of temperature and concentration of ytterbium on upconversion characteristics are analyzed by rate equations in details, which match well with the experiment results.

Key words： tellurite glasses; upconversion; rate equation

Cite this article

HONG Jun , NIE Qiu-Hua , DAI Shi-Xun , XU Tie-Feng , SHEN Xiang , ZHANG Xiang-Hua . Effects of Temperature and Ytterbium Sensitizing on Upconversion Characteristics in Erbium-doped Tellurite Glasses[J]. Journal of Inorganic Materials, 2008 , 23(5) : 1033 -1036 . DOI: 10.3724/SP.J.1077.2008.01033

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