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A Tripodal Molecule on a Gold Surface : Orientation-Dependent Coupling and Electronic Properties of the Molecular Legs

Lukas, Maya and Dössel, Kerrin and Schramm, Alexandrina and Fuhr, Olaf and Stroh, Christophe and Mayor, Marcel and Fink, Karin and v. Löhneysen, Hilbert. (2013) A Tripodal Molecule on a Gold Surface : Orientation-Dependent Coupling and Electronic Properties of the Molecular Legs. ACS Nano, 7 (7). pp. 6170-6180.

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Official URL: http://edoc.unibas.ch/dok/A6223584

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Abstract

The realization of molecular electronics demands a detailed knowledge of the correlation between chemical groups and electronic function. It has become obvious during the last years that the conformation of a molecule and its coupling to the connecting electrodes plays a crucial role in its conductance behavior and its electronic function, e.g., as a switch. Knowledge about these relationships is therefore essential for future design of molecular electronic building blocks. We present a new three-dimensional molecule, consisting of three identical molecular wires connected to a headgroup. Due to the well-defined spatial arrangement of the molecule in a nonplanar geometry, it is possible to investigate the conductance behavior of these wires with respect to their position and coupling to the surface electrode with the submolecular resolution of a scanning tunneling microscope. The experimental findings are supported by calculations of the electronic structure and conformation of the molecule on the surface by density functional theory with dispersion corrections.
Faculties and Departments: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:American Chemical Society
ISSN:1936-0851
e-ISSN:1936-086X
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:05 Apr 2017 10:08
Deposited On:27 Mar 2014 13:12

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