Microwave characterization and modeling of single-walled carbon nanotube composites

We conducted dielectric measurements on composites comprising bundles of single-walled carbon nanotubes embedded in an epoxy matrix. The complex permittivity spectra exhibit dielectric resonance and electronic conduction behavior. Subsequently, we model the system based on two mechanisms: dielectric response and conduction. The former is described by the theory of ferroelectric resonance and the latter by the motion of the conducting electrons. Comparison between theoretical analysis and experimental permittivity data shows good agreement.