Carbon tips as electrodes for single-molecule junctions

Andres Castellanos-Gomez; Stefan Bilan; Linda A. Zotti; Carlos R. Arroyo; Nicolas Agrait; Juan Carlos Cuevas; Gabino Rubio-Bollinger

doi:10.1063/1.3643031

Carbon tips as electrodes for single-molecule junctions

Mesoscale and Nanoscale Physics 2011-11-04 v2 Materials Science

Authors: Andres Castellanos-Gomez , Stefan Bilan , Linda A. Zotti , Carlos R. Arroyo , Nicolas Agrait , Juan Carlos Cuevas , Gabino Rubio-Bollinger

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Abstract

We study electron transport through single-molecule junctions formed by an octanethiol molecule bonded with the thiol anchoring group to a gold electrode and the opposing methyl endgroup to a carbon tip. Using the scanning tunneling microscope based break junction technique, we measure the electrical conductance of such molecular junctions. We observe the presence of well-defined conductance plateaus during the stretching of the molecular bridge, which is the signature of the formation of a molecular junction.

Keywords

molecular electronics

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@article{arxiv.1109.2089,
  title  = {Carbon tips as electrodes for single-molecule junctions},
  author = {Andres Castellanos-Gomez and Stefan Bilan and Linda A. Zotti and Carlos R. Arroyo and Nicolas Agrait and Juan Carlos Cuevas and Gabino Rubio-Bollinger},
  journal= {arXiv preprint arXiv:1109.2089},
  year   = {2011}
}

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10 pages, 5 figures (including supplementary information)

Carbon tips as electrodes for single-molecule junctions

Abstract

Keywords

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