Compositional dependence of the optical properties of the Ge-Se-Ga glasses

被引：0
|
作者：
Nedeva, Y [1 ]
Petkova, T
Mytilineou, E
Petkov, P
机构：
[1] Univ Chem Technol & Met, Dept Phys, BU-1756 Sofia, Bulgaria
[2] Bulgarian Acad Sci, Cent Lab Electrochem Power Sources, BU-1113 Sofia, Bulgaria
[3] Univ Patras, Dept Phys, Patras 26500, Greece
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2001年 / 3卷 / 02期
关键词：
Ge-Se-Ga glasses; optical properties;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Optical properties of the glasses from the systems with a constant ratio of Ge/Se and different concentrations of gallium are investigated. The spectral dependence of the absorption coefficient alpha, is calculated from transmission spectra. The optical band gap, E-g(4), found to increase with the addition of gallium. This variation is explained by the increase of the average bond energy that occurs with the addition of Ga into the alloys. The optical constants, were also calculated from the transmission spectra, using a method proposed by Swanepoel.
引用
收藏
页码：433 / 436
页数：4
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