Band Gap of (In2S3)x(AgIn5S8)1-x Single-Crystal Alloys

被引：1
|
作者：
Bodnar, I., V [1 ]
Feschenko, A. A. [1 ]
Khoroshko, V. V. [1 ]
机构：
[1] Belarusian State Univ Informat & Radio Elect, Minsk 220013, BELARUS
来源：
SEMICONDUCTORS | 2020年 / 54卷 / 12期
关键词：
single crystals; crystal structure; alloys; transmittance spectra; band gap;
D O I：
10.1134/S1063782620120039
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In2S3, AgIn5S8, and (In2S3)(x)(AgIn5S8)(1 -)(x)-alloy single crystals are grown by the Bridgman method. The composition and structure of the crystals are determined. It is established that both the initial compounds and their alloys crystalize with the formation of the cubic spinel structure. The unit-cell parameters of the single crystals are calculated, and the dependences of these parameters on the alloy composition are constructed. It is shown that, in the system, Vegard's law is satisfied. The transmittance spectra of the crystals in the region of the fundamental absorption edge are studied at room temperature, and the band gap (E-g) is determined. It is shown that E-g varies with the composition parameter x, with some deviation from a linear dependence.
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收藏
页码：1611 / 1615
页数：5
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