Influence of Concentration on Structural, Optical and Electrical Properties of Nebulizer Sprayed n-type v2o5 Thin Films Pradeep I.*, Suriyanarayanan N.**, Karunathan R.*** *Department of Physics, Sri Krishna College of Engineering and Technology, Coimbatore, Tamil Nadu, India **Department of Physics, Government College of Technology, Coimbatore, Tamil Nadu, India ***PG and Research, Department of Physics, PSG College of Arts and Science, Coimbatore, India Online published on 3 May, 2016. Abstract Vanadium pentoxide (V2O5) thin films were prepared on glass substrates using precursor solution of vanadium tri-chloride (VCl3) for different concentration at two substrate temperatures (Ts) 250 & 300°C respectively. The deposited thin films were characterized in order to find the XRD, HRSEM, UV, PL, Hall Effect and DC electrical conductivity. The XRD analysis showed that the films deposited at Ts= 250°C were polycrystalline in nature with an orthorhombic structure. Surface morphology indicates that higher concentration surface is nano-rod like structures. The optical and PL band gap energy of these films were evaluated. Further the Hall Effect study was measured at the molarities from 0.1M to 0.4M. In addition, I-V characteristics were carried out at the temperature range from 303 K to 403 K and found to be Ohmic-linear. The electrical resistivity decreased as the solution molarities increased. The DC conductivity of the films was found to vary in the range between 4.24x10−3 (S/cm) and 6.10x10−3 (S/cm) depending on the mole concentrations. Top Keywords V2O5 thin films, Spray pyrolysis, XRD, Electrical properties. Top |