Abstract
Alternating electric field is used to assemble gold nanoparticle nanowires from liquid suspensions. The effects of electrode geometry and the dielectrophoresis force on the chaining and branching of nanowire formation are investigated. The nanowire assembly processes are modeled using finite element calculations, and the particle trajectories under the combined influence of dielectrophoresis force and viscous drag are simulated. Nanoparticle nanowires with 10 nm resolution are fabricated. The wires can be further oriented along an externally introduced flow. This work provides an approach towards rapid assembly and organization of ultrasmall nanoparticle networks.
Keywords
electrodes, electrophoresis, finite element analysis, gold, nanoparticles, nanotechnology, nanowires, self-assembly, viscosity
Subject Categories
Nanowires, Nanoelectronics, Electric circuits - Alternating current
Disciplines
Electrical and Electronics | Nanoscience and Nanotechnology
Publisher
American Institute of Physics
Publication Date
8-6-2007
Restrictions
Copyright 2007
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Xiong, Xugang; Busnaina, Ahmed A.; Selvarasah, Selvapraba; Somu, Sivasubramanian; Wei, Ming; Mead, Joey; Chen, Chia-Ling; Aceros, Juan; Makaram, Prashanth; and Dokmeci, Mehmet R., "Directed assembly of gold nanoparticle nanowires and networks for nanodevices" (2007). Center for High-Rate Nanomanufacturing Publications. Paper 8. http://hdl.handle.net/2047/d20000919
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Figure 3 - high resolution image
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Figure 4 - high resolution image
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Notes
Originally published in Applied Physics Letters, v.91, 063101 (2007); doi:10.1063/1.2763967