Applied Physics

Nanoscale Wiring

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Science  15 Sep 2000:
Vol. 289, Issue 5486, pp. 1841
DOI: 10.1126/science.289.5486.1841e

Several potential building blocks for molecular electronics already have been identified, but the problem of wiring circuitry together on such a small scale still remains. Smith et al. have used electric-field- enhanced assembly to position individual gold nanowires from a colloidal suspension between conducting contacts. The nanowires, which range from a few tens to a couple of hundred of nanometers in diameter and are several micrometers in length, are polarized under the influence of an alternating electric field applied to one of the electrodes. The local high electric field developed at the edge of the electrodes provides the driving force for the nanowire alignment. Once a nanowire has bridged the electrodes, the field is reduced, which then prevents additional nanowires from aligning nearby. — ISO

Appl. Phys. Lett.77, 1399 (2000).

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