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

International Journal of Molecular Sciences

Afarin Bahrami¹  Zainal Abidin Talib¹  Wan Mahmood Mat Yunus¹  Kasra Behzad¹  Mahnaz M. Abdi² 

[1] Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Malaysia; E-Mails:;Department of Chemistry, Faculty of Science, University Putra Malaysia, Serdang 43400, Malaysia; E-Mail:

关键词: polypyrrole;    carbon nanotube;    Hall effect;    conductivity;   

DOI  :  10.3390/ijms131114917

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.