Transition Voltage Spectroscopy and the Nature of Vacuum Tunneling

Transition Voltage Spectroscopy and the Nature of Vacuum Tunneling

Transition voltage spectroscopy (TVS) has been proposed as a tool to analyze charge transport through molecular junctions. We extend TVS to Au−vacuum−Au junctions and study the distance dependence of the transition voltage V t(d) for clean electrodes in cryogenic vacuum. On the one hand, this allows...

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Veröffentlicht in:Nano letters 2011-02, Vol.11 (2), p.614-617
Hauptverfasser: Trouwborst, M. L, Martin, C. A, Smit, R. H. M, Guédon, C. M, Baart, T. A, van der Molen, S. J, van Ruitenbeek, J. M
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron Transport
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in multilayers, nanoscale materials and structures
Equipment Failure Analysis - methods
Exact sciences and technology
Physics
Semiconductors
Spectrum Analysis - methods
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Zusammenfassung:Transition voltage spectroscopy (TVS) has been proposed as a tool to analyze charge transport through molecular junctions. We extend TVS to Au−vacuum−Au junctions and study the distance dependence of the transition voltage V t(d) for clean electrodes in cryogenic vacuum. On the one hand, this allows us to provide an important reference for V t(d) measurements on molecular junctions. On the other hand, we show that TVS forms a simple and powerful test for vacuum tunneling models.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl103699t