Utilization and measurements of WO3/ITO &Novel WO3@NaDCC/ITO thin films prepared by Hydrothermal method as a Nitride Dioxide gas sensor
Journal Title: International Journal of Modern Research In Engineering & Management. - Year 2019, Vol 2, Issue 8
Abstract
Polycrystalline WO3/ITO and WO3@NaDCC/ITO thin films were prepared by hydrothermal technique at temperature 200oC for six hour , characterized with X-ray diffraction (XRD),An X-ray diffractions pattern showed abroading in the FWHM with doping NaDCC and confirmed the formation of polycrystalline monoclinic structure for WO3/ITO and WO3@NaDCC thin films , ITO has a cubic in structure , .Morphology analyzed by Atomic Force Spectroscope (AFM). The results expressed the formation of nanoparticles and decrease an average diameter size when doped NaDCC in WO3/ITO thin films.then investigate and revealed a Nitide Dioxide gas sensing properties of fabricated thin films by .The results reveal that the sensitivity increase as the thin films of WO3/ITO modified by NaDCC , we found that the maximum sensitivity of about 730% of WO3@NaDCC/ITO thin films a moderate optimum temperature of 200oC and an optimum NO2 gas Concentration of 50 ppm.
Authors and Affiliations
Mohanad Q. Kareem
Keywords
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