Study of the effect of base temperature and base type on some optical properties of titanium oxide (TiO2) nanofilms

Abstract

 Titanium oxide films were fabricated using thermal chemical spray technique on two types of substrates (Glass-quartz) at temperatures (300,400) ⁰C. The optical properties were studied using UV-Vis spectroscopy within the wavelength range (300-1100 nm) to calculate values of (transmittance, absorbance, energy gap, absorption coefficient). The E_gvalues for glass were (3.57 eV) and for quartz (3.822 eV). The results also showed that the transmittance for quartz substrates was more than 55%, while for glass substrates it was more than 35% at 400°C. As for its value at a base temperature of 300 degrees Celsius for glass, it was 3.014 ev and for quartz bases, its value was 3.028 ev'. As for the results panel, the transmittance of quartz bases is more than 55% and for glass bases is more than 35% at a base temperature of 400 degrees Celsius, while its value at a base temperature of 300 degrees Celsius for quartz is more than 50% and for glass is 30%. Through the spectral analysis of the energy dispersion EDX, the appearance of transition elements (TiO₂) that make up of the prepared films was.