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
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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.
Bahrami A, Talib ZA, Yunus WMM, Behzad K, M.Abdi M, Din FU. Low Temperature Hall Effect Investigation of Conducting Polymer-Carbon Nanotubes Composite Network. International Journal of Molecular Sciences. 2012; 13(11):14917-14928.
Bahrami, Afarin; Talib, Zainal A.; Yunus, Wan M.M.; Behzad, Kasra; M.Abdi, Mahnaz; Din, Fasih U. 2012. "Low Temperature Hall Effect Investigation of Conducting Polymer-Carbon Nanotubes Composite Network." Int. J. Mol. Sci. 13, no. 11: 14917-14928.