Research Paper | Physics Science | Iraq | Volume 4 Issue 6, June 2015
CdO: Ag Films Deposited by Sol-Gel Process: A Study on their Structure and Optical Properties
Raheem Ka. G., Seror Hameed H
Undoped Ag-doped CdO films have been prepared by sol-gel spin-coating method. Effects of Ag dopant on the optical properties of CdO film have been investigated. The crystal structure and orientation of the films have been investigated by X-ray diffraction method. CdO and CdOAg films have polycrystalline structure with (111) preferential orientation. Ag dopant increases the optical transparency of the films in the visible region. The optical absorption study reveals that the direct optical transitions occur in the optical band gap and the films have a direct optical band gap. The thin films were prepared of undoped, 1 % Ag-doped, 2 % Ag-doped and 4 % Ag-doped CdO films were found to be, 2.39, 2.35, 2.31 and 2.30 eV, respectively. The optical constants, refractive index, extinction coefficient and optical dielectric constants of these films were determined using transmittance and reflectance spectra. Ag doping concentration affects strongly the optical constants of the thin films. The optical constants and optical absorption edge of the CdO thin film can be controlled by Ag dopant.
Keywords: CdO, Sol-gel, spin coating, x-ray diffraction
Edition: Volume 4 Issue 6, June 2015
Pages: 1361 - 1364
How to Cite this Article?
Raheem Ka. G., Seror Hameed H, "CdO: Ag Films Deposited by Sol-Gel Process: A Study on their Structure and Optical Properties", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=SUB154715, Volume 4 Issue 6, June 2015, 1361 - 1364
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