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Carbon Nanotube Flow Sensors
Abstract
We report that the flow of a liquid on single-walled carbon nanotube bundles induces a voltage in the sample along the direction of the flow. The voltage that was produced fit a logarithmic velocity dependence over nearly six decades of velocity. The magnitude of the voltage depended sensitively on the ionic conductivity and on the polar nature of the liquid. Our measurements suggest that the dominant mechanism responsible for this highly nonlinear response involves a direct forcing of the free charge carriers in the nanotubes by the fluctuating Coulombic field of the liquid flowing past the nanotubes. We propose an explanation based on pulsating asymmetric ratchets. Our work highlights the device potential for nanotubes as sensitive flow sensors and for energy conversion.
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Cited by
Lee, J., Mahendra, S., & Alvarez, P. J. J. (2010) · ACS Nano · doi:10.1021/nn100866w · Cited by 750
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Zhao, F., Cheng, H., Zhang, Z., Jiang, L., & Qu, L. (2015) · Advanced Materials · doi:10.1002/adma.201501867 · Cited by 745
Generating electricity by moving a droplet of ionic liquid along graphene
Yin, J., Li, X., Yu, J., Zhang, Z., Zhou, J., & Guo, W. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.56 · Cited by 678
Zhu, G., Su, Y., Bai, P., Chen, J., Jing, Q., Yang, W., & Wang, Z. L. (2014) · ACS Nano · doi:10.1021/nn5012732 · Cited by 565
A review on inkjet printing of nanoparticle inks for flexible electronics
Nayak, L., Mohanty, S., Nayak, S. K., & Ramadoss, A. (2019) · Journal of Materials Chemistry C · doi:10.1039/c9tc01630a · Cited by 497
Metadata
- Authors
- Ghosh, S., Sood, A. K., & Kumar, N.
- Venue
- Science
- Published
- 2003-02-14
- Volume
- 299
- Issue
- 5609
- Pages
- 1042-1044
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2081989905
- Cited by
- 784
- References
- 0
- FWCI
- 26.90
- Type
- journal article
- Language
- en
- Open access
- closed
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