NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2016, 7 (4), P. 687–690
Optical and structural studies of vanadium pentoxide thin films
S. Ganeshan – Department of Physics, Vivekananda College, Madurai; sganeshanmdu@gmail.com
P. Ramasundari – P. G. & Research Department of Physics, S.V. N. College, Madurai; ramyarv@rediffmail.com
A. Elangovan – P. G. & Research Department of Chemistry, Thiagarajar College, Madurai
R. Vijayalakshmi – P. G. & Research Department of Physics, Thiagarajar College, Madurai
Recently, transition metal oxides like Vanadium pentoxide have become a subject of intensive studies. The particular physical and chemical properties of these materials allow a wide range of practical applications such as electrochromic devices, cathode electrodes for lithium batteries, humidity sensors. The V2O5 film was prepared by an electrodeposition technique. The structural and optical properties were studied by X-Ray Diffraction (XRD), scanning electron microscopy (SEM), UV-Visible and Fourier Transform Infrared Spectroscopy (FTIR). XRD spectra recorded has been observed and compared with the JCPDS values. SEM images showed very smooth surface morphology and the elemental compositions of the film were confirmed by EDAX. The transmittance of the V2O5 films showed 75 % at 425 nm for the asdeposited substrate. The energy band gap of the films was found to be 2.45 eV and the band assignments of the V2O5 film are comparable with the reported values.
Keywords: Electrodeposition, optical properties, X-ray diffraction.
PACS 81.15 Pq, 74.25 Gz, 61.05 Cp
DOI 10.17586/2220-8054-2016-7-4-687-690
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