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Issue 10, 2012
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Photo-modulable molecular transport junctions based on organometallic molecular wires

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Abstract

Photo-modulable molecular transport junctions are developed via on-wire lithography-fabricated nanogaps functionalized with a dithienylethene unit bearing two ruthenium fragments. A reversible and repeatable bi-state conductive switching upon alternate irradiation of UV and visible light can be distinctly observed. Theoretical calculations further suggest that bi-directional isomerization is due to the ruthenium moieties that modulate judiciously the electronic coupling between the photochromic part and the metal electrodes, and that the differences in electronic structure between the two isomers (open and closed states) are responsible for conductivity switching.

Graphical abstract: Photo-modulable molecular transport junctions based on organometallic molecular wires

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Publication details

The article was received on 15 Mar 2012, accepted on 05 Aug 2012 and first published on 07 Aug 2012


Article type: Edge Article
DOI: 10.1039/C2SC20323E
Citation: Chem. Sci., 2012,3, 3113-3118
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    Photo-modulable molecular transport junctions based on organometallic molecular wires

    F. Meng, Y. Hervault, L. Norel, K. Costuas, C. Van Dyck, V. Geskin, J. Cornil, H. H. Hng, S. Rigaut and X. Chen, Chem. Sci., 2012, 3, 3113
    DOI: 10.1039/C2SC20323E

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