The optical parameters and photoconductivity of CdxIn1Se9-x chalcogenide thin films

被引：11

作者：

Abdel-Aal, A. ^{[1
]}

机构：

[1] Helwan Univ, Fac Sci, Dept Phys, Cairo, Egypt

来源：

PHYSICA B-CONDENSED MATTER | 2007年 / 392卷 / 1-2期

关键词：

amorphous materials A; semiconductors A; thin films A;

D O I：

10.1016/j.physb.2006.11.016

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An investigation of the optical properties of amorphous thin films of CdxIn1Se9-x alloy (x = 1-5 at %) prepared by the thermal evaporation technique was carried out. The different optical parameters of thin films were studied by the transmission and reflection measurements at normal incidence. The absorption data revealed the existence of allowed indirect and allowed direct transitions. The spectral behavior of the refractive index (n) shows anomalous dispersion in wavelength corresponding to energy (2-3 eV), while for higher wavelengths, it shows normality dispersion for all compositions in agreement with the amorphous films. The single oscillator strength S. and its position lambda(o) were determined and absorption properties in the band-to-band range were studied. Photosensitivity and photoconductivity properties of CdxIn1Se9-x thin films were reviewed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：180 / 187

页数：8

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