Study of Structural and Optical Properties of Spray Pyrolytically Deposited CuInTe2(1-X)S2x Thin Films

A.S. Meshram¹

Section:Research Paper, Product Type: Journal-Paper
Vol.8 , Issue.4 , pp.1-6, Dec-2021

Online published on Dec 31, 2021

Copyright © A.S. Meshram . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The spray pyrolysis technique developed CuInTe2(1-x)S2x thin films of good stoichiometric for the composition of x = 0 to x = 1 at the interval of 0.25. These films were deposited on biological glass plate for various composition of x and we prepared aqueous solutions containing CuCl2, InCl3, TeCl4 and (CS(NH2)2 respectively. From absorption spectra of the films, the band gap values are found to be 0.92 to 1.43 eV which shows the films direct allowed transition. Thickness of these films were obtained 0.16 to 0.22 µm by Michelson interferometer. We report on what we believe to be new physical properties that are relevant for photovoltaic and optical applications and summarize all relevant characteristics, both from the literature and as measured in the present work. XRD pattern shows the films is polycrystalline with preferred orientation along 112 direction. All the chalcopyrite films has attributed to copper vacancies. This paper focuses enhancement of the structural and various optical properties of commercial CuInTe2(1-x)S2x thin films. We have successfully obtained chalcopyrite single phase stoichiometric films. The composition of x varied from x = 0 to 1, several terms such as band gap, extinction coefficient, refractive index and real and imaginary parts of dielectric constants were extremely modified.

Key-Words / Index Term :
Spray pyrolysis; CuInTe2(1-x)S2x ternary compound; XRD; Optical Properties

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