Strain-induced band gap shifts that depend strongly on the chiral angle have been observed by optical spectroscopy in polyvinylpyrrolidone(PVP)- or Surfactin micelle-wrapped single-walled carbon nanotubes (SWCNTs). Uniaxial and torsional strains are generated by changing the environment surrounding the SWCNTs, using the surrounding D2O ice temperature or the hydration state of a wrapping polymer. These methods can be used as diagnostic tools to determine the quantum number, q, and examine chiral vector indices for specific nanotube species.
|Number of pages||2|
|Publication status||Published - 2005|
|Event||27th International Conference on the Physics of Semiconductors, ICPS-27 - Flagstaff, AZ, USA United States|
Duration: 25 Jul 2006 → 29 Jul 2006
|Conference||27th International Conference on the Physics of Semiconductors, ICPS-27|
|Country/Territory||USA United States|
|Period||25/07/06 → 29/07/06|