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Issue 20, 2016
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Identification of the current path for a conductive molecular wire on a tripodal platform

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Abstract

We present the chemical synthesis as well as charge transport measurements and calculations for a new tripodal platform based on a rigid 9,9′-spirobifluorene equipped with a phenylene-ethynylene wire. The transport experiments are performed with the help of the low-temperature mechanically controlled break junction technique with gold electrodes. By combining experimental and theoretical investigations of elastic and inelastic charge transport, we show that the current proceeds through the designated molecular wire and identify a binding geometry that is compatible with the experimental observations. The conductive molecular wire on the platform features a well-defined and relatively high conductance of the order of 10−3G0 despite the length of the current path of more than 1.7 nm, demonstrating that this platform is suitable to incorporate functional units like molecular switches or sensors.

Graphical abstract: Identification of the current path for a conductive molecular wire on a tripodal platform

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Publication details

The article was received on 07 Dec 2015, accepted on 01 May 2016 and first published on 03 May 2016


Article type: Communication
DOI: 10.1039/C5NR08708B
Citation: Nanoscale, 2016,8, 10582-10590
  • Open access: Creative Commons BY-NC license
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    Identification of the current path for a conductive molecular wire on a tripodal platform

    M. A. Karimi, S. G. Bahoosh, M. Valášek, M. Bürkle, M. Mayor, F. Pauly and E. Scheer, Nanoscale, 2016, 8, 10582
    DOI: 10.1039/C5NR08708B

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