The influence of carbon nanotube geometry and morphology on complex permittivity (both Ε′and Ε″) was investigated. In a dilute complex system, it was found that single walled carbon nanotubes (SWNTs) composites can obtain a higher relative dielectric permittivity due to the largest length/diameter aspect ratio (A. R.). Although the A. R. did make a difference, the variation of permittivity could be slightly influenced by the structure in microwave frequencies. Motivated by the idea that the permittivity of carbon nanotubes (CNTs) composites is mostly related to the ...
