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Int. J. Mol. Sci. 2012, 13(11), 14917-14928; doi:10.3390/ijms131114917
Article

Low Temperature Hall Effect Investigation of Conducting Polymer-Carbon Nanotubes Composite Network

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1,* , 1
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1 Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Malaysia 2 Department of Physics, Faculty of Science, Islamic Azad University, Eslamshahr Branch, 3314767653, Iran 3 Department of Physics, Faculty of Science, Islamic Azad University, Shahre Ghods Branch, 3754198811, Iran 4 Department of Chemistry, Faculty of Science, University Putra Malaysia, Serdang 43400, Malaysia
* Author to whom correspondence should be addressed.
Received: 9 July 2012 / Revised: 26 September 2012 / Accepted: 11 October 2012 / Published: 14 November 2012
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract

Polypyrrole (PPy) and polypyrrole-carboxylic functionalized multi wall carbon nanotube composites (PPy/f-MWCNT) were synthesized by in situ chemical oxidative polymerization of pyrrole on the carbon nanotubes (CNTs). The structure of the resulting complex nanotubes was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The effects of f-MWCNT concentration on the electrical properties of the resulting composites were studied at temperatures between 100 K and 300 K. The Hall mobility and Hall coefficient of PPy and PPy/f-MWCNT composite samples with different concentrations of f-MWCNT were measured using the van der Pauw technique. The mobility decreased slightly with increasing temperature, while the conductivity was dominated by the gradually increasing carrier density.
Keywords: polypyrrole; carbon nanotube; Hall effect; conductivity polypyrrole; carbon nanotube; Hall effect; conductivity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Bahrami, A.; Talib, Z.A.; Yunus, W.M.M.; Behzad, K.; M.Abdi, M.; Din, F.U. Low Temperature Hall Effect Investigation of Conducting Polymer-Carbon Nanotubes Composite Network. Int. J. Mol. Sci. 2012, 13, 14917-14928.

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