| 초록 |
Industrial applications of CNTs are strongly dependent upon homogeneous dispersion in organic or aqueous solvents. Although various dispersion techniques has been developed, critical balance between conductivity and transparency for transparent electrodes has not been achieved yet. In this study, we use supercritical fluids (SCFs) for surface modification on CNT by surfactants where SCF facilitates surfactant penetration into CNTs by attenuating van der Waals interaction. We will present experimental proofs of enhanced dispersion such as UV-vis, Near-IR and Raman spectra and SEM and (Cryo) TEM images. And also it will be presented that impurities originated from residual catalysts are partly removed during SCF treatment. |
