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Issue 32, 2011
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Platinum-nanogaps for single-molecule electronics: room-temperature stability

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Abstract

We present the formation of single-molecule devices based on nanometre-spaced platinum electrodes. The electrodes are fabricated using a self-breaking electromigration method which yields nanogaps with long-term stability at room temperature [Prins et al., APL, 2009, 94, 123108.]. The stability at room temperature allows for detailed comparison of the device electrical properties before and after deposition of the molecules. In this way, conductance as a result of direct tunneling between the electrodes can be distinguished from conductance through the molecule. After molecule deposition, some devices display transport in the strong coupling regime while others are in the weak-coupling Coulomb blockade regime. Gated transport is observed in the latter case.

Graphical abstract: Platinum-nanogaps for single-molecule electronics: room-temperature stability

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Publication details

The article was received on 01 Mar 2011, accepted on 13 Apr 2011 and first published on 09 May 2011


Article type: Paper
DOI: 10.1039/C1CP20555B
Citation: Phys. Chem. Chem. Phys., 2011,13, 14297-14301
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    Platinum-nanogaps for single-molecule electronics: room-temperature stability

    F. Prins, A. J. Shaikh, J. H. van Esch, R. Eelkema and H. S. J. van der Zant, Phys. Chem. Chem. Phys., 2011, 13, 14297
    DOI: 10.1039/C1CP20555B

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