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Issue 5, 2012
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Arylthio-substituted coronenes as tailored building blocks for molecular electronics

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Abstract

The electron transport through molecules in molecular devices is typically influenced by the nature of the interfaces with the contacting electrodes and by the interactions between neighbouring molecules. It is a major goal of molecular electronics to adjust the electronic function of a molecular device by tailoring the intrinsic molecular properties and the interfacial and intermolecular interactions. Here, we report on the tunability of the electronic properties of coronene derivatives, namely dodecakis(arylthio)coronenes (DATCs), which are found to exhibit a three-dimensional aromatic system. Scanning tunnelling microscopy (STM), spectroscopy (STS) and simulations based on the density functional theory (DFT) are employed to characterize the structural and electronic properties of these molecules deposited on Au(111) surfaces. It is shown that modifications of the peripheral aryl-groups allow us to specifically affect the self-assembly and the charge transport characteristics of the molecules. Molecular assemblies like supramolecular wires with highly delocalized orbitals and single molecules with molecular “quantum dot” characteristics are obtained in this way.

Graphical abstract: Arylthio-substituted coronenes as tailored building blocks for molecular electronics

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Publication details

The article was received on 14 Oct 2011, accepted on 28 Nov 2011 and first published on 28 Nov 2011


Article type: Paper
DOI: 10.1039/C2CP23241C
Citation: Phys. Chem. Chem. Phys., 2012,14, 1635-1641
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    Arylthio-substituted coronenes as tailored building blocks for molecular electronics

    P. Kowalzik, N. Atodiresei, M. Gingras, V. Caciuc, N. Schnaebele, J. Raimundo, S. Blügel, R. Waser and S. Karthäuser, Phys. Chem. Chem. Phys., 2012, 14, 1635
    DOI: 10.1039/C2CP23241C

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