Thin Solid Films, ( ISI ), Volume (520), Year (2012-7) , Pages (7049-7053)

Title : ( Effect of conducting polymer on the transport properties of carbon nanotube yarn )

Authors: Javad Foroughi , Bahram Kimiaghalam , Shaban Reza Ghorbani , Farzad Safaei , Mehran Abolhasan ,

Citation: BibTeX | EndNote

Experiments were conducted to measure the electrical conductivity in three types of pristine and carbon nanotube-polypyrrole (CNT-PPy) composite yarns and its dependence on over a wide temperature range. The experimental results fit well with the analytical models developed. The effective energy separation between localized states of the pristine CNT yarn is larger than that for both the electrochemically and chemically prepared CNT-PPy yarns. It was found that all samples are in the critical regime in the insulator–metal transition, or close to the metallic regime at low temperature. The electrical conductivity results are in good agreement with a Three Dimensional Variable Range Hopping model at low temperatures, which provides a strong indication that electron hopping is the main means of current transfer in CNT yarns at Tb100 K. We found that the two shell model accurately describes the electronic properties of CNT and CNT-PPy composite yarns in the temperature range of 5–350 K.

Keywords

, Carbon nanotube yarn, Conducting polymer, Polypyrrole, electrical conductivity, Vapor phase
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@article{paperid:1031190,
author = {Javad Foroughi and Bahram Kimiaghalam and Ghorbani, Shaban Reza and Farzad Safaei and Mehran Abolhasan},
title = {Effect of conducting polymer on the transport properties of carbon nanotube yarn},
journal = {Thin Solid Films},
year = {2012},
volume = {520},
month = {July},
issn = {0040-6090},
pages = {7049--7053},
numpages = {4},
keywords = {Carbon nanotube yarn; Conducting polymer; Polypyrrole; electrical conductivity; Vapor phase polymerization},
}

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%0 Journal Article
%T Effect of conducting polymer on the transport properties of carbon nanotube yarn
%A Javad Foroughi
%A Bahram Kimiaghalam
%A Ghorbani, Shaban Reza
%A Farzad Safaei
%A Mehran Abolhasan
%J Thin Solid Films
%@ 0040-6090
%D 2012

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