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Nanotube Nanodevice

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Science  03 Oct 1997:
Vol. 278, Issue 5335, pp. 100-102
DOI: 10.1126/science.278.5335.100

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Abstract

A scanning tunneling microscope (STM) was used to explore the local electrical characteristics of single-wall carbon nanotubes. As the STM tip was moved along the length of the nanotubes, well-defined positions were found where the transport current changes abruptly from a graphitic-like response to one that is highly nonlinear and asymmetrical, including near-perfect rectification. The observations are consistent with the existence of localized, on-tube nanodevices of a type proposed theoretically.

  • * To whom correspondence should be addressed. E-mail: azettl{at}physics.berkeley.edu

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