Singh, Inderpreet and Verma, A. and Kaur , Inderpreet and Bhatnagar , P.K. and Bhatia, V. and Jain, V.K. and Bhatia, C.S. and Bharadwaj, L.M. and Mathur, P.C. (2009) The effect of length of single walled carbon nanotubes (SWNTs) on the electrical properties of conducting polymer-SWNT composites. Journal of polymer science. Part B. Polymer physics , 48 (1). pp. 89-95. ISSN 0887-6266
Full text not available from this repository.Abstract
DC conductivity of conjugated polymer-single-walled carbon nanotube (SWNT) composite films has been measured for different SWNT concentrations. The composite was prepared by dispersing SWNTs in the poly (3-octylthio-phene), P3OT matrix already dissolved in xylene. The conductivity of the composite films showed a rapid increase as the SWNT concentration increases beyond a certain value. This behavior is explained in terms of percolating paths provided by the SWNTs in the volume of polymer matrix. To investigate the effect of length of nanotubes on the percolation conductivity, different SWNT samples were employed with similar diameter but varying tube lengths. It was found that the conductivity of the composite films is strongly dominated by the length of the nanotubes. Lower percolation limit and high conductivity value of composite films is observed for longer nanotubes. Furthermore, the conductivity is observed to be dependent on the size of the host polymer molecule also.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Electrical properties ; Experimental study ; Size effect ; Concentration effect ; Electrical conductivity ; Morphology ; Singlewalled nanotube ; Carbon nanotubes ; Conducting polymers ; Aromatic polymer ; Thiophene derivative polymer ; Nanocomposite ; |
| Subjects: | CSIO > Nano Science and Nano Technology |
| Depositing User: | Ms. Narinder Kaur |
| Date Deposited: | 09 Mar 2012 14:39 |
| Last Modified: | 11 Apr 2012 09:40 |
| URI: | http://csioir.csio.res.in/id/eprint/196 |
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