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Manipulation of nanowires in suspension by ac electric fields

Appl. Phys. Lett. 85, 4175 (2004); doi:10.1063/1.1812364

Issue Date: 1 November 2004

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D. L. Fan
Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218

F. Q. Zhu
Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218

R. C. Cammarata
Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218

C. L. Chien
Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218
Nanowires are potential building blocks for nanoscale devices. Manipulation of nanowires in suspension has been a formidable problem. Using ac electric fields applied to strategically designed microelectrodes, nanowires in suspension can be driven to align, to chain, to accelerate in directions parallel and perpendicular to its orientation, to concentrate onto designated places, and to disperse in a controlled manner with high efficiency despite an extremely low Reynolds number at the level of 10–5. The manipulation of nanowires can also be applied to other small elongated entities such as carbon nanotubes. ©2004 American Institute of Physics
History: Received 22 June 2004; accepted 9 September 2004
Permalink: http://link.aip.org/link/?APPLAB/85/4175/1
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KEYWORDS and PACS

Keywords
PACS
  • 81.07.Bc
    Nanocrystalline materials: fabrication and characterization
  • 82.70.Kj
    Emulsions and suspensions
  • 61.46.+w
    Structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
  • YEAR: 2004

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (12)
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