Chirality assignment of single-walled carbon nanotubes with strain.
Strain-induced band gap shifts that depend strongly on the chiral angle have been observed by optical spectroscopy in 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 are used as diagnostic tools to determine the quantum number q and examine chiral vector indices for specific nanotubes.
Li
Lain-Jong
LJ
Clarendon Laboratory, Physics Department, Oxford University, Parks Road, Oxford OX1 3PU, UK.
Nicholas
R J
RJ
Deacon
R S
RS
Shields
P A
PA