NDLI: Characterization of the dielectric properties of multiwalled carbon nanotubes (MWCNTs) /PEDOT:PSS nanocomposites

Content Provider	IEEE Xplore Digital Library
Author	Sanli, A. Benchirouf, A. Ramalingame, R. Palaniyappan, S. Sharma, R. Muller, C. Kanoun, O.
Copyright Year	2014
Description	Author affiliation: Meas. & Sensor Technol., Tech. Univ. Chemnitz, Chemnitz, Germany (Sanli, A.; Benchirouf, A.; Ramalingame, R.; Palaniyappan, S.; Sharma, R.; Muller, C.; Kanoun, O.)
Abstract	Poly (3,4-ethylenedioxythiophene) poly (4-styrene-sulfonate) (PEDOT:PSS) polymer shows remarkable electrical properties which can be enhanced by using multi-walled carbon nanotubes (MWCNTs) as fillers. The MWCNTs/PEDOT:PSS nanocomposites containing 0.025, 0.05, 0.075 and 0.1 wt. % of MWCNTs were prepared and deposited on a flexible thin substrate (Kapton HN) by using the drop casting technique. The dielectric characterization of nanocomposite was conducted by using the electrochemical impedance spectroscopy over a wide range of frequency from 40 Hz to 110 MHz. It was observed that the real part of complex impedance decreases due to generation of more conductive paths in nanocomposite with increasing MWCNTs content and it shows the existence of both frequency dependent and frequency independent regions. The imaginary part of impedance indicates the presence of dipolar relaxation which is considered as a peak in the corresponding frequency. Furthermore, the polarization and the conduction mechanism of PEDOT:PSS nanocomposites of different MWCNTs content has been analyzed by designing an equivalent circuit based on the impedance data of the nanocomposites.
Sponsorship	IEEE Spain Sect. IE/PEL Joint Chapt.
Starting Page	1
Ending Page	5
File Size	1081463
Page Count	5
File Format	PDF
ISBN	9781479938667
DOI	10.1109/SSD.2014.6808895
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-02-11
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic films Electrodes Spectroscopy Nanocomposites Electrochemical Impedance spectroscopy MWCNTs Equivalent Circuit Modelling Indexes Dispersion Substrates PEDOT:PSS Dielectric relaxation
Content Type	Text
Resource Type	Article

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