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无机材料学报

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

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

研究论文

OH-对掺Er3+/Yb3+钡镓锗玻璃发光的影响及除水研究

  • 江小平 ,
  • 杨中民 ,
  • 冯洲明
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  • 特种功能材料教育部重点实验室，华南理工大学 光通信材料研究所， 广州 510640

收稿日期: 2008-06-10

  修回日期: 2006-07-22

  网络出版日期: 2009-03-20

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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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摘要

钡镓锗玻璃是一种优质的红外发光材料，而钡镓锗玻璃中少量OH-的存在严重影响玻璃的结构并劣化了玻璃的发光性能.实验研究了在原料中引入氟化物除水和在引入氟化物的基础上进行反应气氛法除水两种方法对Er3+/Yb3+共掺钡镓锗玻璃上转换发光、1.53μm发光的影响,采用Forster-Dexter半经验简化模型分析了OH-和Er3+之间的能量转移几率.结果表明：在引入氟化物的基础上进行反应气氛法除水可以将玻璃中的OH-浓度降低到原来的1/11；随OH-浓度的降低，上转换荧光比1.53μm发光增强更明显，545nm绿光增强了2.8倍；OH-和Er3+之间的能量转移常数为1.75×10-19cm4/s，该值比磷酸盐玻璃中OH-和Er3+之间的能量转移常数稍大.

关键词： Er3+/Yb3+共掺钡镓锗玻璃; 反应气氛法; 发光

本文引用格式

江小平 , 杨中民 , 冯洲明 . OH-对掺Er3+/Yb3+钡镓锗玻璃发光的影响及除水研究[J]. 无机材料学报, 2009 , 24(2) : 243 -246 . DOI: 10.3724/SP.J.1077.2009.00243

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

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