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A novel microwave synthesis of nanocrystalline SnO2 and its structural optical and dielectric properties

  • M. ParthibavarmanEmail author
  • K. Vallalperuman
  • S. Sathishkumar
  • M. Durairaj
  • K. Thavamani
Article

Abstract

Nanocrystalline SnO2 particles with the rutile structure have been successfully synthesized by a novel microwave irradiation method. This process requires less reaction time and low temperature. Transmission electron microscopy studies show that SnO2 particles are in spherical shape with size about 25–30 nm. Selected area electron diffraction pattern confirms single crystalline nature of the SnO2. UV–Vis spectrometer was carried out to study the optical properties and estimated band gap energy of SnO2 particles is 3.55 eV. In Fourier transform infrared study, a defined peak at around 615 cm−1 is observed due to Sn–O vibration. Frequency dependent dielectric anomaly is observed in SnO2 nanoparticles at low temperature. It is found that the value of dielectric constant of SnO2 particles at 10 kHz is found to be 777.5. It systematically decreases with increasing frequency whereas increases with increasing temperature. Further, the prepared samples were characterized by Photoluminescence spectroscopy and energy dispersive spectroscopy.

Keywords

SnO2 Hydrazine Hydrate Dielectric Measurement Diffusion Reflectance Spectroscopy SnO2 Nanoparticles 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • M. Parthibavarman
    • 1
    Email author
  • K. Vallalperuman
    • 1
  • S. Sathishkumar
    • 1
  • M. Durairaj
    • 1
  • K. Thavamani
    • 2
  1. 1.Department of PhysicsMahendra Engineering CollegeTiruchengodeIndia
  2. 2.Department of PhysicsAVS Technical CampusSalemIndia

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