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.

Notes

Originally published in Applied Physics Letters, v.91, 063101 (2007); doi:10.1063/1.2763967

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

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Fig1.zip (1702 kB)
Figure 1 - high resolution image

Fig2.zip (1424 kB)
Figure 2- high resolution image

Fig3.zip (450 kB)
Figure 3 - high resolution image

Fig4.zip (1168 kB)
Figure 4 - high resolution image

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