Research

Fabrication of shuttle-junctions for nanomechanical transfer of electrons


Reference:

Moskalenko, A. V., Gordeev, S., Koentjoro, O. F., Raithby, P., French, R., Marken, F. and Savel’ev, S., 2009. Fabrication of shuttle-junctions for nanomechanical transfer of electrons. Nanotechnology, 20 (48), 485202.

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Official URL:

http://dx.doi.org/10.1088/0957-4484/20/48/485202

Abstract

We report on the fabrication of nanomechanical devices for shuttling of electrons from one electrode to another. Each device consists of a 20 nm diameter gold nanoparticle embedded within the gap between two gold electrodes. In two different kinds of shuttle-junctions the nanoparticle is attached to the electrodes through either (i) a single layer of 1,8-octanedithiol or (ii) a multilayer of 1-octanethiol molecules. The thiol layers play the role of 'damped springs', such that when a sufficient voltage bias is applied to the junction, the nanoparticle is expected to start oscillating and thereby transferring electrons from one electrode to the other. For both kinds of shuttle-junctions we observed an abrupt increase in the transmitted current above a threshold voltage, which can be attributed to a transition from the stationary to the oscillating regime. The threshold voltage was found to be lower for single-layer shuttle-junctions.

Details

Item Type Articles
CreatorsMoskalenko, A. V., Gordeev, S., Koentjoro, O. F., Raithby, P., French, R., Marken, F. and Savel’ev, S.
DOI10.1088/0957-4484/20/48/485202
DepartmentsFaculty of Science > Chemistry
Faculty of Science > Physics
RefereedYes
StatusPublished
ID Code21864

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