Exciton absorption spectrum of thin films of Cs1-xRbxCu2CI3 solid solutions

被引：0

作者：

Kovalenko, E. N. ^{[1
]}

Yunakova, O. N. ^{[2
]}

Yunakov, N. N. ^{[2
]}

机构：

[1] Kharkov Natl Univ, 4 Svobody Sq, UA-61022 Kharkiv, Ukraine

[2] Kharkiv Natl Univ Radio Elect, 14 Nauky Ave, UA-61166 Kharkiv, Ukraine

来源：

FUNCTIONAL MATERIALS | 2021年 / 28卷 / 03期

关键词：

solid solutions; thin films; absorption spectra; excitons; ELECTRICAL-CONDUCTIVITY; CRYSTAL-STRUCTURE;

D O I：

10.15407/fm28.03.410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The exciton absorption spectra of thin films of Cs1-xRbxCu2CI3 solid solutions were studied in the spectral range of 2 to 6 eV. The formation of solid solutions that are isostructural with CsCu2CI3 was found in the concentration range 0 <= x <= 0.6, the formation of solid solutions that are isostructural with RbCu2CI3 was detected in the range 0.6 < x <= 1. A linear concentration dependences of the parameters of the exciton bands and the bandgap width were found in the ranges 0 x 0.6 and 0.6 x 1. Exciton spectra of Cs1-xRbxCu2CI3 0 <= x <= 1 solid solutions were interpreted on the basis of the transitions in the Cu+ ions.

引用

页码：410 / 414

页数：5

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