On the structural and optical characteristics of CdSe thin films

被引：93

作者：

Baban, C ^{[1
]}

Rusu, GI ^{[1
]}

机构：

[1] Al I Cuza Univ, R-6600 Iasi, Romania

来源：

APPLIED SURFACE SCIENCE | 2003年 / 211卷 / 1-4期

关键词：

cadmium selenide; polycrystalline thin films; optical properties;

D O I：

10.1016/S0169-4332(03)00299-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of preparation conditions on the structure and optical properties of cadmium selenide (CdSe) thin films deposited by thermal evaporation under vacuum onto glass substrates was studied. The structural investigations performed by means of X-ray diffraction (XRD) technique, scanning electron microscopy (SEM) and atomic force microscopy (AFM), showed that the films have a polycrystalline and hexagonal (wurtzite) structure. Transmission spectra, in the spectral domain 600-1400 nm, are investigated. The values of some important parameters of the studied films (absorption coefficient, optical bandgap energy and refractive index) are determined from these spectra. The values of the energy gap, E-g (allowed direct transitions), calculated from the absorption spectra, ranged between 1.65 and 1.75 eV. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：6 / 12

页数：7

共 27 条

[1]

[Anonymous], 1983, Thin Film Solar Cells P

[2]

[Anonymous], 1980, POLYCRYSTALLINE AMOR

[3] Optical properties of CdSe films deposited by the quasi-closed volume technique [J].

Baban, C ;

Rusu, GG ;

Nicolaescu, II ;

Rusu, GI .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (35) :7687-7697

[4]

BABAN C, 2000, J PHYS S, V2, P167

[5]

BABAN C, 2001, IASI, V47, P87

[6]

BHARGAVA R, 1997, INSPEC PUBLICATIONS

[7] Electrodeposition of epitaxial CdSe on (111) gallium arsenide [J].

Cachet, H ;

Cortès, R ;

Froment, M ;

Etcheberry, A .

THIN SOLID FILMS, 2000, 361 :84-87

[8]

Chopra K. L., 1969, Thin Films Phenomena

[9] DISORDER AND THE OPTICAL-ABSORPTION EDGE OF HYDROGENATED AMORPHOUS-SILICON [J].

CODY, GD ;

TIEDJE, T ;

ABELES, B ;

BROOKS, B ;

GOLDSTEIN, Y .

PHYSICAL REVIEW LETTERS, 1981, 47 (20) :1480-1483

[10]

DOLOCAN V, 1983, REV ROUM PHYS, V28, P647

← 1 2 3 →