Study of structural, electrical and optical properties of vanadium oxide condensed films deposited by spray pyrolysis technique

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ID: 116386
2013
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Abstract
Vanadium oxides condensed films are prepared on glass substrates, using spray pyrolysis (SP) technique. The effects of substrate temperature, vanadium concentration in initial solution and the solution spray rate on the nano-structural, electrical, and optical properties of deposited films were investigated. Characterizations of the samples were performed using X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis spectroscopy methods. The type and concentration of the charge carriers were determined and measured by Hall effect experiment. XRD patterns showed that the prepared films had polycrystalline structure, mostly tetragonal β-V2O5 and V4O9 phases with the preferred orientation along (200) direction. The Hall effect experiment revealed that all samples were n-type, except the ones deposited at substrate temperatures T sub = 300 °C and T sub = 450 °C, vanadium concentration 0.1 mol/L and solution spray rate 10 mL/min. The charge carrier concentrations obtained were in the range 1016–1018 cm−3. The lowest sheet resistance (R s) was obtained for the samples prepared at T sub = 450 °C, vanadium concentration 0.05 mol/L and solution spray rate 10 mL/min. It was also found that the optical transparency of the samples changed from 20% to 75% and the optical band gap of the samples was from 2.22 eV to 2.58 eV, depending on the deposition conditions.
Reference Key
mousavi2013advancesstudy Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors M. Mousavi;A. Kompany;N. Shahtahmasebi;M. M. Bagheri-Mohagheghi;M. Mousavi;A. Kompany;N. Shahtahmasebi;M. M. Bagheri-Mohagheghi;
Journal advances in manufacturing
Year 2013
DOI
doi:10.1007/s40436-013-0045-y
URL
https://link.springer.com/article/10.1007/s40436-013-0045-y
Keywords
manufacturing control Machines Tools Processes Robotics Mechatronics nanotechnology and microengineering

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