The nanotechnology approach was used to improve the adhesion force as well as the surface properties of graphene oxide (GO) films in this study. By employing a modified Hummer's process to oxidise pure graphite, GO has been created in powder form. Several types of solvents were used to deposit different films of GO nanoparticles (NPs), including distilled water, acetone, ethanol, dimethylformamide (DMF), and ethylene glycol. XRD and UV–vis absorption spectroscopy were used to investigate the structural and optical characteristics of GO films. Electrical properties, surface roughness, contact angle, adhesion force, wetting energy, and spreading coefficient were all looked into. The solvent type has an effect on the qualities of the produced films, it has been discovered. The electrical resistivity of films is strongly dependent on the solvent type, with distilled water having the lowest value. Furthermore, the adhesion force and average surface roughness (Ra) of GO films synthesised with distilled water are 143.4 mN/m and 7.83 m, respectively. These findings are linked to the agglomeration of hydrophilic cites and GO NPs on the surface of films, as well as the effects of their size on surface roughness expansion.
Author (s) Details
M. Abdelhamid Shahat
PV Unit, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt.
Ahmed Ghitas
PV Unit, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt.
F. M. El-Hossary
Physics Department, Faculty of Science, Sohag University, Sohag, Egypt.
A. M. Abd El-Rahman
Physics Department, Faculty of Science, Sohag University, Sohag, Egypt and King Abdul Aziz University, Jeddah, KSA.
Mohammed H. Fawey
Physics Department, Faculty of Science, Sohag University, Sohag, Egypt.
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