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Title: Study on low temperature DC electrical conductivity of SnO{sub 2} nanomaterial synthesized by simple gel combustion method

Nanocrystalline tin oxide (SnO{sub 2}) material of different particle size was synthesized using gel combustion method by varying oxidizer (HNO{sub 3}) and keeping fuel as a constant. The prepared samples were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive Analysis X-ray Spectroscope (EDAX). The effect of oxidizer in the gel combustion method was investigated by inspecting the particle size of nano SnO{sub 2} powder. The particle size was found to be increases with the increase of oxidizer from 8 to 12 moles. The X-ray diffraction patterns of the calcined product showed the formation of high purity tetragonal tin (IV) oxide with the particle size in the range of 17 to 31 nm which was calculated by Scherer’s formula. The particles and temperature dependence of direct (DC) electrical conductivity of SnO{sub 2} nanomaterial was studied using Keithley source meter. The DC electrical conductivity of SnO{sub 2} nanomaterial increases with the temperature from 80 to 300K and decrease with the particle size at constant temperature.
Authors:
; ; ;  [1] ;  [2]
  1. Department of P.G studies and Research in Physics Kuvempu University, Jnanasahyadri, Shankarghatta, Shimoga, Karnataka, India- 577451 (India)
  2. Department of Physics, Indian Institute of Science Bangalore-12 (India)
Publication Date:
OSTI Identifier:
22490275
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; CRYSTALS; ELECTRIC CONDUCTIVITY; GELS; NANOMATERIALS; NANOSTRUCTURES; NITRIC ACID; OXIDIZERS; PARTICLE SIZE; PARTICLES; POWDERS; SCANNING ELECTRON MICROSCOPY; TEMPERATURE DEPENDENCE; TIN; TIN OXIDES; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY