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Ann N Y Acad Sci. 2002 Apr;960:69-99.

Molecular wires, switches, and memories.

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1
Department of Electrical Engineering, Yale University, P.O. Box 208284, New Haven, Connecticut 06520, USA. chenjia@us.ibm.com

Abstract

Design and measurements of molecular wires, switches, and memories offer an increased device capability with reduced elements. We report: Measurements on through-bond electronic transport properties of nanoscale metal-1,4-phenylene diisocyanide-metal junctions are reported, where nonohmic thermionic emission is the dominant process, with isocyanide-Pd showing the lowest thermionic barrier of 0.22 eV; robust and large reversible switching behavior in an electronic device that utilizes molecules containing redox centers as the active component, exhibiting negative differential resistance (NDR) and large on-off peak-to-valley ratio (PVR) are realized; erasable storage of higher conductivity states in these redox-center-containing molecular devices are observed; and a two-terminal electronically programmable and erasable molecular memory cell with long bit retention time is demonstrated.

PMID:
11971792
[Indexed for MEDLINE]
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