Optical properties of electrodeposited CdTe thin films

被引：67

作者：

Mathew, X ^{[1
]}

Sebastian, PJ ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Ctr Invest Energia, Solar HYdrogen Fuel Cell Grp, Temixco 62580, Morelos, Mexico

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1999年 / 59卷 / 1-2期

关键词：

CdTe; thin films; optical properties;

D O I：

10.1016/S0927-0248(99)00034-3

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The absorption coefficient spectra of the electrodeposited CdTe thin films were analyzed and compared with that of the single crystal. Pinhole-free thin films facilitated the analysis of the high-energy regions of the absorption coefficient spectra. The various allowed direct and indirect transitions were detected successively by subtracting the extrapolated values of the lower-energy transitions. The effect of heat treatment on the optical transitions were analyzed with films annealed at 300 degrees C in air, argon and CdCl2. The direct band gap of the electrodeposited films decreased with increasing film thickness and approaches the value of the single crystal. The films annealed at different environments show slightly lower value for the band gap. Annealing in argon caused significant change in the optical transition spectra. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：85 / 98

页数：14

共 22 条

[1] AMIRTHARAJ PM, 1991, HDB OPTICAL CONSTANT, V2, P655
[2] NONDESTRUCTIVE ANALYSIS OF HG1-XCDXTE(X=0.00,0.20,0.29, AND 1.00) BY SPECTROSCOPIC ELLIPSOMETRY .2. SUBSTRATE, OXIDE, AND INTERFACE PROPERTIES
ARWIN, H
ASPNES, DE
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1984, 2 (03): : 1316 - 1323
[3] ELECTRODEPOSITED CDTE AND HGCDTE SOLAR-CELLS
BASOL, BM
[J]. SOLAR CELLS, 1988, 23 (1-2): : 69 - 88
[4] REVIEW OF OPTICAL APPLICATIONS OF CDTE
BELL, RO
[J]. REVUE DE PHYSIQUE APPLIQUEE, 1977, 12 (02): : 391 - 399
[5] THIN-FILM CDS/CDTE SOLAR-CELL WITH 15.8-PERCENT EFFICIENCY
BRITT, J
FEREKIDES, C
[J]. APPLIED PHYSICS LETTERS, 1993, 62 (22) : 2851 - 2852
[6] OPTICAL PROPERTIES OF AMORPHOUS ZNTE AND CDTE
BROWN, HM
BRODIE, DE
[J]. CANADIAN JOURNAL OF PHYSICS, 1972, 50 (20) : 2502 - +
[7] CHOUDHURI S, 1987, THIN SOLID FILMS, V147, P9
[8] BAND STRUCTURES AND PSEUDOPOTENTIAL FORM FACTORS FOR 14 SEMICONDUCTORS OF DIAMOND AND ZINC-BLENDE STRUCTURES
COHEN, ML
BERGSTRESSER, TK
[J]. PHYSICAL REVIEW, 1966, 141 (02): : 789 - +
[9] EVIDENCE FOR SHARP AND GRADUAL OPTICAL-ABSORPTION EDGES IN AMORPHOUS GERMANIUM - COMMENT
CONNELL, GAN
LEWIS, A
[J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1973, 60 (01): : 291 - 298
[10] THE KINETICS OF THE ELECTRODEPOSITION OF CADMIUM TELLURIDE
DANAHER, WJ
LYONS, LE
[J]. AUSTRALIAN JOURNAL OF CHEMISTRY, 1984, 37 (04) : 689 - 701

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