y3+掺杂GeS2-Ga2S3-CsI玻璃中红外发光特性研究
Investigation On Mid-infrared Luminescent Properties of Dy3+-doped GeS2-Ga2S3-CsI glass
本文研究了0.05mol%Dy3+掺杂的GeS2-Ga2S3-CsI硫卤玻璃的中红外发光特性。结果表明CsI引入到GeS2-Ga2S3硫系玻璃中有效降低了体系的析晶能力，所有多重态的吸收截面均不同程度减小，峰位产生蓝移，且在1.7μm（6H15/2→6H11/2）附近蓝移最大；荧光寿命测试表明，随着CsI的引入，基质玻璃的离子键性增强且折射率下降，从而导致辐射跃迁速率下降。在Dy3+掺杂的不同组分的GeS2-Ga2S3-CsI硫卤玻璃中，随着S含量的增加，6H11/2处的吸收截面增大，2.7μm (6H13/2→6H15/2)和3.5μm （6H11/2→6H13/2）处的发射截面增大，这与GeS2四面体结构成分增加有关。Dy3+掺杂0.9(80GeS2-20Ga2S3)-10CsI硫卤玻璃在2.7μm（6H13/2→6H15/2）附近产生形状为多个峰组合成的较宽的发射带。
In this paper, the luminescence of 0.05mol%Dy3+-doped GeS2-Ga2S3-CsI was investigated. With the addition of CsI to GeS2-Ga2S3 chalcogenide glasses, the ability of crystallization decreased, the intensities of absorption cross section of all multiplets also decreased with a blue-shift and its its maximum shift occurred in 1.7μm(6H15/2→6H11/2). The luminescent lifetime demonstrated that the ionicity and refraction index of the based glass decreased,which reduced the radiative transition rate.With the increasing of S content in GeS2-Ga2S3-CsI chacohalide glasses,due to the increasing of GeS2 tetrahedral structure, the absorption cross section of 6H11/2 increased, the emission cross section of 2.7μm (6H13/2→6H15/2) and 3.5μm (6H11/2→6H13/2) increased.The emission spectra shape of Dy3+-doped 0.9(80GeS2-20Ga2S3)-10CsI chacohalide glass were wide emission band combined by several peaks rounding 2.7μm(6H13/2→6H15/2).
卢本强、侯亚男、赵修建、刘启明
物理学化学晶体学
发光材料y3+掺杂硫卤玻璃中红外发光
luminescent materialsy3+-doped chalcohalide glassesmid-infrared luminescence
卢本强,侯亚男,赵修建,刘启明.y3+掺杂GeS2-Ga2S3-CsI玻璃中红外发光特性研究[EB/OL].(2010-11-30)[2025-08-19].http://www.paper.edu.cn/releasepaper/content/201011-715.点此复制
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