Ho3+/Yb3+共掺TeO2-ZnO-ZnX2(X=F,Cl,Br)玻璃的结构和红外发光特性(英文)

被引:0
|
作者
贾玉洁 [1 ]
林健 [1 ,2 ]
张文俊 [1 ]
李辰 [1 ]
任军江 [3 ]
戎亮 [3 ]
机构
[1] 同济大学材料科学与工程学院
[2] 同济大学先进土木工程材料教育部重点实验室
[3] 中国电子科技集团公司第二十三研究所
关键词
氧卤碲酸盐玻璃; 玻璃结构; 钬镱共掺; 红外发光; J-O理论;
D O I
暂无
中图分类号
TQ171.1 [基础理论];
学科分类号
摘要
采用熔融法制备TeO2-ZnO-ZnX2(X=F,Cl,Br)系统氧卤玻璃块体,并测定了玻璃的各项特征温度。通过Raman光谱和X射线光电子能谱分析了卤化物的引入对玻璃网络结构稳定性的影响。结果表明,加入ZnF2比加入ZnCl2或ZnBr2对Ho3+/Yb3+共掺的碲酸盐玻璃的近红外荧光输出有更明显的效果和规律性。与加入ZnCl2和ZnBr2相比,加入ZnF2对Ho3+/Yb3+共掺的碲酸盐玻璃近中红外的荧光输出影响更加明显和规律。ZnF2虽会抑制1μm处发光但能增强1.2和2μm的发光,同时2μm处荧光输出的量子效率也得到大幅提升。比起使用ZnBr2,使用ZnF2和ZnCl2替代ZnO能更好地提高玻璃的光学性能和热稳定性。在这3种卤化锌中,氟化锌对稀土发光的增强起着更为重要的作用。
引用
收藏
页码:545 / 556
页数:12
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