Materials science: Electrowetting in carbon nanotubes

J. Y. Chen; A. Kutana; C. P. Collier; K. P. Giapis

doi:10.1126/science.1120385

Materials science: Electrowetting in carbon nanotubes

J. Y. Chen, A. Kutana, C. P. Collier, K. P. Giapis

Research output: Contribution to journal › Article › peer-review

120 Scopus citations

Abstract

We demonstrate reversible wetting and filling of open single-wall carbon nanotubes with mercury by means of electrocapillary pressure originating from the application of a potential across an individual nanotube in contact with a mercury drop. Wetting improves the conductance in both metallic and semiconducting nanotube probes by decreasing contact resistance and forming a mercury nanowire inside the nanotube. Molecular dynamics simulations corroborate the electrocapillarity-driven filling process and provide estimates for the imbibition speed and electrocapillary pressure.

Original language	English
Pages (from-to)	1480-1483
Number of pages	4
Journal	Science
Volume	310
Issue number	5753
DOIs	https://doi.org/10.1126/science.1120385
State	Published - Dec 2 2005
Externally published	Yes

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AU - Giapis, K. P.

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AB - We demonstrate reversible wetting and filling of open single-wall carbon nanotubes with mercury by means of electrocapillary pressure originating from the application of a potential across an individual nanotube in contact with a mercury drop. Wetting improves the conductance in both metallic and semiconducting nanotube probes by decreasing contact resistance and forming a mercury nanowire inside the nanotube. Molecular dynamics simulations corroborate the electrocapillarity-driven filling process and provide estimates for the imbibition speed and electrocapillary pressure.

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Materials science: Electrowetting in carbon nanotubes

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