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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 2: 243 - 246

DOI: https://doi.org/10.3724/SP.J.1077.2009.00243

Research Paper

OH- Removal and its Effect on the Fluorescent Properties of
Er3+/Yb3+ Co-doped Barium Gallogermanate Glass

  • JIANG Xiao-Ping ,
  • YANG Zhong-Min ,
  • FENG Zhou-Ming
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  • Key Lab of Special Functional Materials, Ministry of Education, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China

Received date: 2008-06-10

  Revised date: 2006-07-22

  Online published: 2009-03-20

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Abstract

Barium gallogermanate glass is a good candidate material for infrared emission. However, the residual OH- in the barium gallogermanate glass destroys the glass network and degrades its fluorescence emission properties. Two methods, introduction of fluoride into glass raw materials and Reaction Atmosphere Process (RAP) based on introducting fluoride into glass raw materials, were adopted to dehydrate and then the effects of OH- concentration on the upconversion and 1.53μm luminescence emission were investigated. Energy transfer rate between Er3+ and OH- is analyzed by a simple Forster-Dexter semi-empirical model. The results show that the RAP can reduce the OH- concentration up to one eleventh of the original. Correspondingly, the intensity of 545nm upconversion emission increases 2.8 times, which is obviously larger than the increase of 1.53μm emission intensity. Energy transfer parameter between Er3+ and OH- is 1.75×10-19cm4/s,which is a little larger than that in phosphate glass.

Key words： Er3+/Yb3+ co-doped barium gallogermanate glass; Reaction Atmosphere Process (RAP); emission properties

Cite this article

JIANG Xiao-Ping , YANG Zhong-Min , FENG Zhou-Ming . OH- Removal and its Effect on the Fluorescent Properties of
Er3+/Yb3+ Co-doped Barium Gallogermanate Glass[J]. Journal of Inorganic Materials, 2009 , 24(2) : 243 -246 . DOI: 10.3724/SP.J.1077.2009.00243

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