Analytical studies of electrohydrodynamically TiO2 nanostructure

W. Gibbs, M. Torris
2019 Journal of Experimental and Theoretical Nanotechnology Specialized Researches (JETNSR)  
In this paper, we report an alternate technique for the deposition of nanostructured TiO2 thin films using the electrohydrodynamic atomization (EHDA) technique us- ing polyvinylpyrrolidone (PVP) as a stabilizer. The required parameters for achieving uniform TiO2 films using EHDA are also discussed in detail. X-ray diffraction results con- firm that the TiO2 films were oriented in the anatase phase. Scanning electron microscope studies revealed the uniform deposition of the TiO2. The purity of
more » ... e films is charac- terized by using Fourier transform infrared (FTIR) spec- troscopy and X-ray photoelectron spectroscopy (XPS), con- firming the presence of Ti–O bonding in the films without any organic residue. The optical properties of the TiO2 films were measured by UV-visible spectroscopy, which shows that the transparency of the films is nearly 85% in the visi- ble region. The current–voltage (I –V ) curve of the TiO2 thin films shows a nearly linear behavior with 45 mQ cm of elec- trical resistivity. These results suggest that TiO2 thin films deposited via the EHDA method possess promising applications in optoelectronic devices.
doi:10.56053/3.1.103 fatcat:6zyjak2ikjd7dow7lj3ediysrq