Controlled formation of metallic nanowires via Au nanoparticle ac trapping

Details Controlled formation of metallic nanowires via Au nanoparticle ac trapping Controlled formation of metallic nanowires via Au nanoparticle ac trapping

2007-05-15

arxiv.org/abs/0705.2119v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Nanotechnology 18, 235202 (2007)

Scientific paper

10.1088/0957-4484/18/23/235202

Applying ac voltages, we trapped gold nanoparticles between microfabricated electrodes under well-defined conditions. We demonstrate that the nanoparticles can be controllably fused together to form homogeneous gold nanowires with pre-defined diameters and conductance values. Whereas electromigration is known to form a gap when a dc voltage is applied, this ac technique achieves the opposite, thereby completing the toolkit for the fabrication of nanoscale junctions.

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