Electric charge enhancements in carbon nanotubes: Theory and experiments

Details Electric charge enhancements in carbon nanotubes: Theory and experiments Electric charge enhancements in carbon nanotubes: Theory and experiments

2009-09-16

arxiv.org/abs/0909.3060v1

Phys. Rev. B 78, 085425 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 Fig

Scientific paper

We present a detailed study of the static enhancement effects of electric charges in micron-length single-walled carbon nanotubes, using theoretically an atomic charge-dipole model and experimentally electrostatic force microscopy. We demonstrate that nanotubes exhibit at their ends surprisingly weak charge enhancements which decrease with the nanotube length and increase with the nanotube radius. A quantitative agreement is obtained between theory and experiments.

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