PAni-SnO2 Nanocomposite: Irradiation Induced Charge Transport Processes

Smritimala Sarmah; Ashok Kumar

doi:10.4028/www.scientific.net/SSP.209.39

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HomeSolid State PhenomenaSolid State Phenomena Vol. 209PAni-SnO2 Nanocomposite: Irradiation Induced...

PAni-SnO₂Nanocomposite: Irradiation Induced Charge Transport Processes

Abstract:

The films of polyaniline–tin oxide (PAni–SnO2) nanocomposites were synthesized by chemical oxidative polymerization technique. These films were irradiated with 90 MeV O7+ ions at the fluences of 5×1010, 1×1011, 5×1011, and 1×1012 ions/cm2. X-ray diffraction studies show that microstrain and domain crystallite size of SnO2 nanoparticles in PAni matrix increase with the increase of ion fluence, resulting in highly ordered PAni–SnO2 nanocomposites. DC electrical conductivity is found to increase with the increase of fluence and conduction mechanism follows a quasi one-dimensional variable-range hopping model. AC electrical conductivity also increases with the increase of ion fluence and obeys correlated barrier-hopping model.

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Solid State Phenomena (Volume 209)

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39-43

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https://doi.org/10.4028/www.scientific.net/SSP.209.39

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November 2013

Authors:

Smritimala Sarmah, Ashok Kumar

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Correlated Barrier Hopping, Nanocomposite, Swift Heavy Ion Irradiation, Transport Properties, Variable Range Hopping

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