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

Karimi, M. A. and Bahoosh, S. G. and Valášek, M. and Bürkle, M. and Mayor, M. and Pauly, F. and Scheer, E.. (2016) Identification of the current path for a conductive molecular wire on a tripodal platform. Nanoscale, 8 (20). pp. 10582-10590.

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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 −3 G 0 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.
Faculties and Departments:05 Faculty of Science
05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:RSC Publishing
ISSN:2040-3364
e-ISSN:2040-3372
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:11 Jan 2017 12:45
Deposited On:11 Jan 2017 12:45

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