Abstract
Numerous electronics applications have been proposed for discrete single-walled carbon nanotubes (SWNTs) due to their exceptional electronic properties, which vary with diameter and chirality of the tube. Any solution processing to sort as-grown SWNTs by type requires a robust dispersion method that must overcome nanotube insolubility and strong van der Waals attraction between tubes. Functionalization of SWNTs with helically wrapped single-stranded DNA yields stable hybrid structures that disperse in aqueous solution.[1], [2] Since these hybrids are intended for use in optical and electronic devices, we investigate whether the optical properties of DNA-wrapped SWNTs are different than those of bare nanotubes. We find changes in the optical absorption spectra in perpendicular polarization, including circular dichroism of achiral nanotubes. These effects may serve as characterization tools to identify the presence of a DNA wrap.
| Original language | English (US) |
|---|---|
| Title of host publication | Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008 |
| Pages | 27-30 |
| Number of pages | 4 |
| Volume | 1 |
| State | Published - Oct 13 2008 |
| Event | 2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 - Quebec City, QC, United States Duration: Jun 1 2008 → Jun 5 2008 |
Other
| Other | 2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 |
|---|---|
| Country/Territory | United States |
| City | Quebec City, QC |
| Period | 6/1/08 → 6/5/08 |
All Science Journal Classification (ASJC) codes
- Mechanical Engineering