EXCITON ABSORPTION IN CDS1-XSEX AND ZNSE1-XTEX SOLID-SOLUTIONS

被引：32

作者：

NAUMOV, A ^{[1
]}

PERMOGOROV, S ^{[1
]}

REZNITSKY, A ^{[1
]}

VERBIN, S ^{[1
]}

KLOCHIKHIN, A ^{[1
]}

机构：

[1] INST NUCL PHYS,LENINGRAD 199034,USSR

来源：

JOURNAL OF CRYSTAL GROWTH | 1990年 / 101卷 / 1-4期

关键词：

18;

D O I：

10.1016/0022-0248(90)91065-X

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Absorption spectra of CdS1-xSex and ZnSe1-xTex semiconductor solid solutions have been studied at T = 2 K in the region of fundamental absorption edge for composition range (0.02 < x < 0.6). It is shown that potential fluctuations due to compositional disorder of the alloy have a strong effect on both the exciton state broadening and the band gap shift. A model for description of the exciton absorption spectra is developed. The contribution of the fluctuations to the part of the band gap shift which is nonlinear in concentration is separated from the other mechanisms. © 1989.

引用

页码：713 / 717

页数：5

共 18 条

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