Materials with a special affinity for water, those it spreads across, maximizing contact, are known as hydrophilic. Those that naturally repel water, causing droplets to form, are known as hydrophobic. Both classes of materials can have a significant impact on the performance of power plants, electronics, airplane wings and desalination plants, among other technologies The recent advancements in fabricating thin films have shown promising results in these surface wettability studies. Hydrophilic and hydrophobic surfaces are defined by the geometry of water on a flat surface which is called the contact angle. Although many studies have focused on these structures, finding new materials and methods is vital for improving performance. Metal oxides (ZnO, ZrO2, TiO2 etc.) are among the latest breakthrough semiconductor materials that have provided high water flux.
In this work, TiO2 thin films were prepared via sol-gel spin coating on MWCNTs decorated In:SnO2 (ITO) substrates. First, MWCNTs were coated onto ITO substrates by spin coating. Then, TiO2 coating was realized by using sol-gel spin coating. Shift in Raman spectra and wetting behavior with water droplet were studied. Doubling the number of spins and the amount of MWCNTs reasonably causes to shift original G- and D- bands of MWCNTs and affects the interaction between H2O and TiO2. ORCID NO: 0000-0002-4445-4800
Anahtar Kelimeler: metal oxide, Raman shift, surface wettability