Aligned carbon nanotube-polymer composites: Investigating their electrical and physical characteristics

Sumanth Banda, Zoubeida Ounaies, John Wilkinson, Cheol Park, Joycelyn Harrison

Research output: Contribution to journalConference article

3 Scopus citations

Abstract

Single wall carbon nanotube (SWNT)-polymer composites aligned by an AC electric field were characterized using Raman spectroscopy and electrical conductivity measurements to assess the resulting alignment. The Polarized Raman spectra was recorded at several angles between the SWNT axis and the incident polarization ranging from 0° to 180°. Inspection of the spectra revealed that maximum intensity is obtained when the polarization of incident radiation is parallel to the SWNT axis (α i = 0° and α i = 180°), while the smallest intensity is obtained when the polarization of incident radiation is perpendicular to the SWNT axis (α i = 90°). The electrical measurements were made in three directions; parallel to the aligned SWNTs and perpendicular to the aligned SWNTs. Based on the electrical conductivity and polarized Raman spectroscopy measurements, it can be concluded that the SWNTs in the polymer matrix were preferentially aligned by applying an AC electric field of 43.5 V/mm at a frequency of 1 Hz, 10 Hz, 10 KHz and 100 KHz.

Original languageEnglish (US)
Pages (from-to)27-36
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5387
DOIs
StatePublished - Oct 25 2004
EventSmart Structures and Materials 2004 - Active Materials: Behaviour and Mechanics - San Diego, CA, United States
Duration: Mar 15 2004Mar 18 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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