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

Seungho Lee, Wonsuk Jung, Ju Yeon Woo, Soohyun Kim, Chang-Soo Han

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Article number036110
JournalReview of Scientific Instruments
Volume84
Issue number3
DOIs
Publication statusPublished - 2013 Mar 1

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Single-walled carbon nanotubes (SWCN)
Flow velocity
purity
flow velocity
carbon nanotubes
Viscosity of liquids
Fluids
fluids
ion concentration
Microfluidics
alignment
viscosity
Electrodes
electrodes
Ions
liquids
Experiments
Hot Temperature

ASJC Scopus subject areas

  • Instrumentation

Cite this

Note : Detecting flow velocity with high purity semiconducting single-walled carbon nanotubes. / Lee, Seungho; Jung, Wonsuk; Woo, Ju Yeon; Kim, Soohyun; Han, Chang-Soo.

In: Review of Scientific Instruments, Vol. 84, No. 3, 036110, 01.03.2013.

Research output: Contribution to journalArticle

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