Temperature dependent growth and optical properties of SnO2 nanowires and nanobelts

Bulletin of materials science

J Ravichandran¹  S P Mondal²  S K Ray²  I Manna¹ 

[1] Department of Metallurgical & Materials Engineering, Indian Institute of Technology, Kharagpur 721 302, India$$Department of Metallurgical & Materials Engineering, Indian Institute of Technology, Kharagpur 721 302, IndiaDepartment of Metallurgical & Materials Engineering, Indian Institute of Technology, Kharagpur 721 302, India$$;Department of Physics & Meteorology, Indian Institute of Technology, Kharagpur 721 302, India$$Department of Physics & Meteorology, Indian Institute of Technology, Kharagpur 721 302, IndiaDepartment of Physics & Meteorology, Indian Institute of Technology, Kharagpur 721 302, India$$

关键词: SnO2;    nanostructures;    growth mechanism;    optical properties.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

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 (750â€�??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 558â€�??588 nm. The Raman and Fourier transform infrared spectra revealed the formation of stoichiometric SnO₂ at different growth temperatures.

【 授权许可】

Unknown