Orthogonally modulated molecular transport junctions for resettable electronic logic gates

Fanben Meng, Yves-Marie Hervault, Qi Shao, Benhui Hu, Lucie Norel, Stéphane Rigaut () and Xiaodong Chen ()
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Fanben Meng: School of Materials Science and Engineering, Nanyang Technological University
Yves-Marie Hervault: Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS—Université de Rennes 1
Qi Shao: School of Materials Science and Engineering, Nanyang Technological University
Benhui Hu: School of Materials Science and Engineering, Nanyang Technological University
Lucie Norel: Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS—Université de Rennes 1
Stéphane Rigaut: Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS—Université de Rennes 1
Xiaodong Chen: School of Materials Science and Engineering, Nanyang Technological University

Nature Communications, 2014, vol. 5, issue 1, 1-9

Abstract: Abstract Individual molecules have been demonstrated to exhibit promising applications as functional components in the fabrication of computing nanocircuits. Based on their advantage in chemical tailorability, many molecular devices with advanced electronic functions have been developed, which can be further modulated by the introduction of external stimuli. Here, orthogonally modulated molecular transport junctions are achieved via chemically fabricated nanogaps functionalized with dithienylethene units bearing organometallic ruthenium fragments. The addressable and stepwise control of molecular isomerization can be repeatedly and reversibly completed with a judicious use of the orthogonal optical and electrochemical stimuli to reach the controllable switching of conductivity between two distinct states. These photo-/electro-cooperative nanodevices can be applied as resettable electronic logic gates for Boolean computing, such as a two-input OR and a three-input AND-OR. The proof-of-concept of such logic gates demonstrates the possibility to develop multifunctional molecular devices by rational chemical design.

Date: 2014
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DOI: 10.1038/ncomms4023

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