| 초록 |
Highly conductive transparent conductive films (TCFs) were prepared with highly purified single-walled carbon nanotubes (SWCNTs) and the purification effects were analyzed using Raman spectroscopy, FE-SEM, FE-TEM, TGA, and contact angle measurement. The comprehensive electrical and optical performance, especially the conductivity, could be improved significantly after a combination of thermal oxidation (TO) and recovery processes (TR) due to the effective removal of impurities and healing of the defects. As a result of the TO-TR process, the sheet resistance of TCF decreased dramatically from 5,380 to 187 Ω/sq at 80% optical transmittance and a wavelength of 550 nm. These results led us to conclude that the TO-TR process can play an important role in achieving high-quality SWCNTs and high conductivity of TCF as well. |
