Publikation: Identification of the current path for a conductive molecular wire on a tripodal platform
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2016
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Valášek, Michal
Mayor, Marcel
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Nanoscale. 2016, 8(20), pp. 10582-10590. ISSN 2040-3364. eISSN 2040-3372. Available under: doi: 10.1039/c5nr08708b
Zusammenfassung
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(-3)G0 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.
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KARIMI, Mohammad Amin, Safa G. BAHOOSH, Michal VALÁŠEK, Marius BÜRKLE, Marcel MAYOR, Fabian PAULY, Elke SCHEER, 2016. Identification of the current path for a conductive molecular wire on a tripodal platform. In: Nanoscale. 2016, 8(20), pp. 10582-10590. ISSN 2040-3364. eISSN 2040-3372. Available under: doi: 10.1039/c5nr08708bBibTex
@article{Karimi2016Ident-34719,
year={2016},
doi={10.1039/c5nr08708b},
title={Identification of the current path for a conductive molecular wire on a tripodal platform},
number={20},
volume={8},
issn={2040-3364},
journal={Nanoscale},
pages={10582--10590},
author={Karimi, Mohammad Amin and Bahoosh, Safa G. and Valášek, Michal and Bürkle, Marius and Mayor, Marcel and Pauly, Fabian and Scheer, Elke}
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<dcterms:abstract xml:lang="eng">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(-3)G0 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.</dcterms:abstract>
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