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Synthesis of Nanostructured Tin Oxide (SnO2) Powders and Thin Films by Sol-Gel Method

Bhagwat, Ashok D ; Sawant, Sachin S ; Ankamwar, Balaprasad G ; Mahajan, Chandrashekhar M

Journal of Nano- and Electronic Physics, 2015-01, Vol.7 (4), p.4037-1 [Periódico revisado por pares]

Sumy Ukraine: Sumy State University, Journal of Nano - and Electronic Physics

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  • Título:
    Synthesis of Nanostructured Tin Oxide (SnO2) Powders and Thin Films by Sol-Gel Method
  • Autor: Bhagwat, Ashok D ; Sawant, Sachin S ; Ankamwar, Balaprasad G ; Mahajan, Chandrashekhar M
  • É parte de: Journal of Nano- and Electronic Physics, 2015-01, Vol.7 (4), p.4037-1
  • Descrição: Nanocrystalline SnO2 powder was successfully prepared by using simple sol-gel technique. The sol-gel obtained was washed and calcinated at 400 [deg]C to obtain the SnO2 nano-powder. The structural property of (SnO2) nanocrystalline powder was investigated by using X-ray diffraction (XRD) technique. The optical properties were studied using Uv-Vis Spectroscopy, by recording the absorbance and transmittance spectra. The XRD pattern of the as-prepared sample demonstrated the formation of a rutile structure of SnO2 nanocrystallites. The Scanning Electron Microscopic (SEM) analysis showed a homogeneous distribution of quite small grains over scanned area. The Uv-Vis absorbance spectra also showed a characteristic peak of absorbance at 312 nm corresponding to SnO2. The energy band gap measurement for nanocrystalline SnO2 thin film was done from the graph of variation of ( hν)2 versus hν. The measured value of optical bandgap energies for SnO2 thin film is 3.78 eV. The results show that the transmittance of the synthesized SnO2 film is 78 % in the spectral range 350 nm to 800 nm.
  • Editor: Sumy Ukraine: Sumy State University, Journal of Nano - and Electronic Physics
  • Idioma: Russo;Ucraniano
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