Abstract
▶ Functionalization of single walled carbon nanotubes with oligo-N-vinylcarbazole. ▶ Use of IR, Raman, optical absorption and PL to argue the grafting process. ▶ By referring to the chloroform, chlorobenzene induces a more dispersion process. ▶ Non-covalently homogenous dispersion process for concentrations lower than 1.1%. ▶ Annealing at 333
K induces a covalent bonding for SWNTs concentrations less than 1.1%.
Raman scattering (RS), Fourier transform infrared (FTIR), optical absorption (OA) and photoluminescence (PL) are used to investigate a composite based on single walled carbon nanotubes (SWNTs) and a well defined short oligo-N-vinylcarbazole (OVK). The compound is obtained for several SWNTs weight concentrations (0.85, 1.10, 1.75 and 3.50%) by the mixing procedure using the chlorobenzene as an appropriate solvent. Our purpose is to elucidate not only the charge transfer between both components, but also the effect of SWNTs concentration on the optical and vibrational properties of the new synthesized composite. Moreover, in order to reach better level functionalization process, all samples are annealed at the temperature of 333
K. Then, the effect of thermal treatment is carried out.