GROWTH AND OPTICAL-PROPERTIES OF CUGATE2 THIN-FILMS

被引：131

作者：

NEUMANN, H ^{[1
]}

HORIG, W ^{[1
]}

RECCIUS, E ^{[1
]}

SOBOTTA, H ^{[1
]}

SCHUMANN, B ^{[1
]}

KUHN, G ^{[1
]}

机构：

[1] KARL MARX UNIV,FACHBEREICH KRISTALLOG,SEKT CHEM,DDR-703 LEIPZIG,GER DEM REP

来源：

THIN SOLID FILMS | 1979年 / 61卷 / 01期

关键词：

D O I：

10.1016/0040-6090(79)90494-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CuGaTe2 thin films with thicknesses in the range of 1000-2000 Å have been prepared by flash evaporation of pre-reacted material onto glass and silicon substrates. The films were single phase, polycrystalline and stoichiometric within 1%, as shown by transmission electron diffraction measurements and ion backscattering spectrometry. Four characteristic energy gaps of 1.227, 1.280, 1.97 and 2.67 eV were obtained from an analysis of the optical transmission spectra in the photon energy range from 1 to about 3 eV. A model is proposed for the band structure of CuGaTe2 near the point Γ of the Brillouin zone. Transmission measurements in the far infrared yielded three transverse optical mode frequencies of 166.4 cm-1, 201.4 cm-1 and 209.2 cm-1. © 1979.

引用

页码：13 / 22

页数：10

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