Exciton absorption spectrum of thin films of ternary compounds in the CsCl-CuCl system

被引：2

作者：

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

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

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

机构：

[1] Kharkiv Natl Univ Radio Elect, UA-61166 Kharkiv, Ukraine

[2] V N Karazin Kharkiv Natl Univ, UA-61022 Kharkiv, Ukraine

来源：

LOW TEMPERATURE PHYSICS | 2023年 / 49卷 / 10期

关键词：

thin films; absorption spectra; excitons; OPTICAL-CONSTANTS; CRYSTAL; DERIVATIVES; CSCU2CL3; SILVER; BR; RB; CL;

D O I：

10.1063/10.0020874

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The absorption spectra of thin films (CsCl)(1-x)(CuCl)(x) were studied at T = 90 K in the spectral range 2-6 eV. From the analysis of the spectra, the formation of CsCu2Cl3 and Cs2CuCl3 compounds in the CsCl-CuCl system was created. The Cs2CuCl3 compound is stable only in a vacuum; in air, it apparently decomposes into CsCu2Cl3 with a disordered crystal lattice and CsCl. The exciton spectrum of both compounds is interpreted on the basis of transitions in the Cu+ ion. The one-dimensional character of excitons in CsCu2Cl3 and the two-dimensional character in Cs2CuCl3 were established.

引用

页码：1190 / 1195

页数：6

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