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Toward Functional Molecular Devices Based on Graphene–Molecule Junctions

Authors

  • Yang Cao,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China)
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  • Shaohua Dong,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China)
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  • Song Liu,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China)
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  • Prof. Zhongfan Liu,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China)
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  • Prof. Xuefeng Guo

    Corresponding author
    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China)
    • Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China)
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  • We acknowledge primary financial support from MOST (2012CB921404) and NSFC (21225311 and 51121091).

Abstract

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Building bridges: Molecular functionalities can be installed into electronic devices having graphene–molecule junctions generated by the dash-line lithographic (DLL) method. When a sulfonic acid modified azobenzene unit served as the bridge, the conductance could be switched reversibly by irradiation with light of different wavelengths and by exposure to solutions of different pH. Other molecular transport junctions were generated by metal-ion coordination.

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