In situ electron energy-loss spectroscopy on carbon nanotubes during deformation

Suenaga, K.; Colliex, C.; Iijima, S.
January 2001
Applied Physics Letters;1/1/2001, Vol. 78 Issue 1, p70
Academic Journal
Local modifications to the electronic structure during the bending deformation of carbon nanotubes are probed by in situ electron energy-loss spectroscopy. Reversible changes in the carbon K(1s) absorption near-edge fine structures are detected at the inner bending side for a multiwalled carbon nanotube and attributed to the curvature-induced electronic structure alteration of the graphite layers. More intensive changes in the carbon K edge across an abrupt kink of a bundle of single-walled carbon nanotubes are observed over a region of 4-5 nm around the kink. These results clearly demonstrate the unique deformation behavior of the carbon nanotube, namely, a high elastic deformability and variable electronic properties associated with bending. © 2001 American Institute of Physics.


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