Electrochemical polymerization, optical and electrical characterizations of polycarbazole on single wall carbon nanotubes

Electrochemical polymerization of polycarbazole (PCz) on CVD grown, single wall carbon nanotubes (SWCNT), by using two-electrode cell is reported. This process was compared to cyclic voltammetry and three-electrode cell polymerization of PCz on bare conducting glass. The SWCNT were characterized by using Raman spectroscopy. Visible range transmission spectra of the PCz/SWCNT electrode exhibited spectroscopic characteristics similar to those of PCz on conducting glass electrode. On the other hand, differences were detected at the near IR spectral range. I-V measurements of the coated SWCNT films exhibited a general ohmic behavior and a substantial increase in the sample conductivity.