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Title: Flow driven eletronic transport in carbon nanotubes
Authors: Sood, A.K.
Ghosh, Shankar
Kumar, N.
Keywords: Carbon nanotube
liquid flow
flow sensor
Issue Date: 2005
Publisher: World Scientific Publishing Company
Citation: International Journal of Nanoscience, 2005, Vol.4, p839-848
Abstract: The flow of a liquid on single-walled carbon nanotube bundles induces an electrical signal (voltage/current) in the sample along the direction of the flow. The electrical response is found to be logarithmic in the flow speed over a wide range. The magnitude of the flow induced electrical signal generated depends sensitively on the ionic conductivity and the polar nature of the liquid, and electrical biasing of the nanotubes can control its direction. Our measurements suggest that the dominant mechanism responsible for this highly sub-linear response should involve a direct forcing of the free charge carriers in the nanotubes by the fluctuating Coulombic field of the liquid flowing past it.
Description: Restricted Access.
ISSN: 1475-7435
1741-8151 (Online)
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Copyright: 2005 World Scientific Publishing Company
Appears in Collections:Research Papers (TP)

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