Title: Effect of composition on the optical properties of the quaternary CuxAg1–xInTe2 thin films
Abstract: physica status solidi (a)Volume 198, Issue 1 p. 188-196 Original Paper Effect of composition on the optical properties of the quaternary CuxAg1–xInTe2 thin films E. A. El-Sayad, E. A. El-Sayad [email protected] Search for more papers by this authorG. B. Sakr, G. B. Sakr Physics Department, Faculty of Education, Ain Shams Univ., Cairo, EgyptSearch for more papers by this author E. A. El-Sayad, E. A. El-Sayad [email protected] Search for more papers by this authorG. B. Sakr, G. B. Sakr Physics Department, Faculty of Education, Ain Shams Univ., Cairo, EgyptSearch for more papers by this author First published: 19 May 2003 https://doi.org/10.1002/pssa.200306594Citations: 5AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Thin films of CuxAg1–xInTe2 solid solutions (x = 0.25, 0.50 and 0.75) were deposited by thermal evaporation of prereacted materials on glass substrates. X-ray diffraction (XRD) studies has revealed that the as-deposited and thermally annealed films are polycrystalline with single-phase of a tetragonal chalcopyrite structure as that of bulk material with (112) predominant reflecting plane. The films compositions were confirmed by using energy dispersive analysis of X-rays (EDAX). The refractive index, n, and the extinction coefficient, k, of the annealed films with different compositions were determined in the spectral range, 400–2500 nm. Three characteristic energy gaps have been determined from the analysis of optical absorption spectrum for each composition. The three energy gaps are attributed to the optical transitions from the valence sub-bands to the conduction band minimum. Besides, a fourth energy gap has also been obtained for each composition, which may be attributed to the transition from the copper 3d-level to the conduction band minimum. However, the band gaps showed linear variation with the value of x. Citing Literature Volume198, Issue1July 2003Pages 188-196 RelatedInformation
Publication Year: 2003
Publication Date: 2003-07-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4
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