• Temperature dependent growth and optical properties of SnO2 nanowires and nanobelts

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      https://www.ias.ac.in/article/fulltext/boms/033/04/0357-0364

    • Keywords

       

      SnO2; nanostructures; growth mechanism; optical properties.

    • Abstract

       

      SnO2 nanowires and nanobelts have been grown by the thermal evaporation of Sn powders. The growth of nanowires and nanobelts has been investigated at different temperatures (750–1000°C). The field emission scanning electron microscopic and transmission electron microscopic studies revealed the growth of nanowires and nano-belts at different growth temperatures. The growth mechanisms of the formation of the nanostructures have also been discussed. X-ray diffraction patterns showed that the nanowires and nanobelts are highly crystalline with tetragonal rutile phase. UV-visible absorption spectrum showed the bulk bandgap value (∼ 3.6 eV) of SnO2. Photoluminescence spectra demonstrated a Stokes-shifted emission in the wavelength range 558–588 nm. The Raman and Fourier transform infrared spectra revealed the formation of stoichiometric SnO2 at different growth temperatures.

    • Author Affiliations

       

      S P Mondal1 S K Ray1 J Ravichandran2 I Manna2

      1. Department of Physics & Meteorology, Indian Institute of Technology, Kharagpur 721 302, India
      2. Department of Metallurgical & Materials Engineering, Indian Institute of Technology, Kharagpur 721 302, India
    • Dates

       
  • Bulletin of Materials Science | News

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