Molecular conductance measurements through printed Au nanodots

W. Jiang, E. Garfunkel, N. Zhitenev, D. Abusch-Magder, D. Tennant, Z. Bao

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Abstract

Gold pads with ∼100 nm diameter are imprinted on self-assembled monolayers of alkane dithiols of different lengths using nanotransfer printing. The pads are contacted by conductive atomic force microscope tips, and electron transport was measured as a function of force. Atomic scale topography at the metal-molecule interface is essential to describe the conductance-stress relationship. A finite force (1-10 nN) deforms devices resulting in two competing effects: (a) a larger contact area and (b) deformation of the interfacial bonds and/or tilting of the molecules. The estimated conductance of molecules is significantly smaller than results suggested in previous experiments and calculations.

Original languageEnglish
Article number113107
JournalApplied Physics Letters
Volume89
Issue number11
DOIs
Publication statusPublished - Sep 21 2006

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Jiang, W., Garfunkel, E., Zhitenev, N., Abusch-Magder, D., Tennant, D., & Bao, Z. (2006). Molecular conductance measurements through printed Au nanodots. Applied Physics Letters, 89(11), [113107]. https://doi.org/10.1063/1.2345613