Electrical conduction and dielectric relaxation in p-type PVA/CuI polymer composite

PVA/CuI polymer composite samples have been prepared and subjected to characterizations using FT-IR spectroscopy, DSC analysis, ac spectroscopy and dc conduction. The FT-IR spectral analysis shows remarkable variation of the absorption peak positions whereas DSC illustrates a little decrease of both...

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Bibliographic Details
Published in:Journal of advanced research 2013-11, Vol.4 (6), p.531-538
Main Authors: Makled, M.H., Sheha, E., Shanap, T.S., El-Mansy, M.K.
Format: Article
Language:English
Subjects:
CuI/PVA composite
dc Conductivity
DSC
FT-IR
Original
Polymer composite
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Summary:PVA/CuI polymer composite samples have been prepared and subjected to characterizations using FT-IR spectroscopy, DSC analysis, ac spectroscopy and dc conduction. The FT-IR spectral analysis shows remarkable variation of the absorption peak positions whereas DSC illustrates a little decrease of both glass transition temperature, Tg, and crystallization fraction, χ, with increasing CuI concentration. An increase of dc conductivity for PVA/CuI nano composite by increasing CuI concentration is recoded up to 15wt%, besides it obeys Arhenuis plot with an activation energy in the range 0.54–1.32eV. The frequency dependence of ac conductivity showed power law with an exponent 0.33
ISSN:2090-1232
2090-1224
DOI:10.1016/j.jare.2012.09.007