| 초록 |
Single-Walled Carbon Nanotubes(SWNTs) exhibit outstanding mechanical, electrical and electrochemical properties suggesting great potential for vast range of applications. However, SWNT exist in a mixture of metallic and semiconducting types, which limit the application despite their excellent properties. Many researches have been carried out to solve such problems by separating SWNTs by electronic types, but succeeded only in laboratory scale. In this work, we demonstrate a separation technique that involves amine functional groups and their chirality selectivity on SWNT. Amine terminating functional groups show preferential attraction toward neutral metallic SWNT, but the trend is reversed by introducing defects and functional groups on SWNT sidewalls. We focus on the influence of such defects on amine treated surface. To invest the selectivity, Raman spectra, SEM, TEM were observed. |
