Note: Detecting flow velocity with high purity semiconducting single-walled carbon nanotubes

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We report the measurement of fluid velocity on a semiconducting single-walled carbon nanotubes film in a microfluidic channel. To investigate the mechanism related to electrical signal change, we performed various experiments along with changing the flow velocity, the ion concentration and liquid viscosity, etc. Our result suggests that the sensing of flow velocity is a closely related to a pulsating asymmetrical thermal ratchet model. The electric signal change was strongly dependent on the electrode alignment, and the channel width of the sample. As the result, we achieved highly sensitive detection of the fluid, roughly 4 times greater than previous results. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4797620]
Publisher
AMER INST PHYSICS
Issue Date
2013-03
Language
English
Article Type
Article
Keywords

FILMS; SENSORS

Citation

REVIEW OF SCIENTIFIC INSTRUMENTS, v.84, no.3

ISSN
0034-6748
DOI
10.1063/1.4797620
URI
http://hdl.handle.net/10203/173878
Appears in Collection
ME-Journal Papers(저널논문)
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