Preparation and Study of Cadmium Oxide Doped Gallium Oxide Thin Films and application of Gas Sensor
DOI:
https://doi.org/10.31257/2018/JKP/2017/v9.i2.9434Keywords:
Thin films, Cadmium oxide, Gallium oxide, Thermal chemical analysis, XRDAbstract
In this paper, the structure and optical properties of pure cadmium oxide films, and doped with gallium oxide have been achieved, the films were deposited on glass and silicon substrates, with different ratios (1,3,5,7)% via spry pyrolysis method, at the substrate temperature of ̊ C300. XRD results showed that all prepared films had a cubic polycrystalline structure, with preferred orientation of (111) for cadmium oxide. Surface morphology was studied using atomic force microscope (AFM), the grain size of the thin films was about 105.42-69.07 nm, with surface roughness is about (3.32-0.901) nm and root mean square (RMS) (3.97-1.05) nm for cadmium oxide films. The optical properties were studied using UV-VIS spectroscopy at wavelength (300-1100 nm), It was observed that the value of transmittance increases when the gallium doping are increasing and the films have a direct energy gap about (2.3-4) eV that increases with the increase in gallium concentration. Sensitivity properties of pure cadmium oxide films, and doped with gallium oxide was deposed on silicon substrates of NO2 gas at different operation temperatures was found that the films of CdO doped with Gallium oxide on silicon substrate has greater sensitivity than the films than the undoped and that the doping has improved the sensitivity of the membranes CdO.
Downloads
Downloads
Published
How to Cite
Issue
Section
Categories
License
Copyright (c) 2023 Salah sh.hamd, Asmiet Ramizy, Isam M. Ibrahim
This work is licensed under a Creative Commons Attribution 4.0 International License.
Journal of Kufa-Physics is licensed under the Creative Commons Attribution 4.0 International License, which allows users to copy, to create extracts, abstracts, and new works from the Article, to alter and revise the Article, and to make commercial use of the Article (including reuse and/or resale of the Article by commercial entities), provided the user gives appropriate credit (with a link to the formal publication through the relevant DOI), provides a link to the license, indicates if changes were made and the licensor is not represented as endorsing the use made of the work. The authors hold the copyright for their published work on the JKP website, while KJP is responsible for appreciating citation for their work, which is released under CC-BY-4.0 enabling the unrestricted use, distribution, and reproduction of an article in any medium, provided that the original work is properly cited.