期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 324, 期 1-2, 页码 150-158出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-3093(03)00243-6
关键词
-
Bulk oxyhalide glasses have been prepared in the TeO2-ZnO-ZnX2 and TeO2-PbO-PbX2 systems (X = Cl, Br, I) and the corresponding glass-forming regions have been determined. Their density and characteristic temperatures were also determined. The glass-forming regions increased in the direction I --> Br --> Cl and were largest for the zinc-tellurite compositions. For the TeO2-ZnO-ZnCl2 system, compositions with 20 mol% ZnO presented the highest glass-forming ability and had high thermal stability and good infrared transmittance. The progressive replacement of TeO2 by ZnCl2 improved the optical quality of the glasses, as well as their thermal stability, but they became more hygroscopic. Erbium chloride was added to two base glass compositions, 40TeO(2)-20ZnO-40ZnCl(2) and 60TeO(2)-20ZnO-20ZnCl(2) (in mol%) and bulk glass samples could be obtained with additions of up to 10 mol% ErCl3. Photoluminescence measurements of the erbium-doped glasses, at 1.5 mum, showed highest fluorescence intensity for the 60TeO(2)-20ZnO-20ZnCl(2) compositions, especially with 3 mol% ErCl3 with a corresponding metastable level lifetime of similar to6 ms. Higher concentrations of erbium caused a decrease of both properties. (C) 2003 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据