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Graphene transistors for real-time monitoring molecular self-assembly dynamics

Author

Listed:
  • Marco Gobbi

    (IKERBASQUE, Basque Foundation for Science
    CIC nanoGUNE BRTA
    Centro de Física de Materiales CFM-MPC (CSIC-UPV/EHU)
    University of Strasbourg, CNRS, ISIS UMR 7006)

  • Agostino Galanti

    (University of Strasbourg, CNRS, ISIS UMR 7006)

  • Marc-Antoine Stoeckel

    (University of Strasbourg, CNRS, ISIS UMR 7006)

  • Bjorn Zyska

    (Humboldt-Universität zu Berlin)

  • Sara Bonacchi

    (University of Strasbourg, CNRS, ISIS UMR 7006
    University of Padua)

  • Stefan Hecht

    (Humboldt-Universität zu Berlin
    DWI—Leibniz Institute for Interactive Materials
    RWTH Aachen University)

  • Paolo Samorì

    (University of Strasbourg, CNRS, ISIS UMR 7006)

Abstract

Mastering the dynamics of molecular assembly on surfaces enables the engineering of predictable structural motifs to bestow programmable properties upon target substrates. Yet, monitoring self-assembly in real time on technologically relevant interfaces between a substrate and a solution is challenging, due to experimental complexity of disentangling interfacial from bulk phenomena. Here, we show that graphene devices can be used as highly sensitive detectors to read out the dynamics of molecular self-assembly at the solid/liquid interface in-situ. Irradiation of a photochromic molecule is used to trigger the formation of a metastable self-assembled adlayer on graphene and the dynamics of this process are monitored by tracking the current in the device over time. In perspective, the electrical readout in graphene devices is a diagnostic and highly sensitive means to resolve molecular ensemble dynamics occurring down to the nanosecond time scale, thereby providing a practical and powerful tool to investigate molecular self-organization in 2D.

Suggested Citation

  • Marco Gobbi & Agostino Galanti & Marc-Antoine Stoeckel & Bjorn Zyska & Sara Bonacchi & Stefan Hecht & Paolo Samorì, 2020. "Graphene transistors for real-time monitoring molecular self-assembly dynamics," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18604-4
    DOI: 10.1038/s41467-020-18604-4
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    Cited by:

    1. Grace C. Thaggard & Kyoung Chul Park & Jaewoong Lim & Buddhima K. P. Maldeni Kankanamalage & Johanna Haimerl & Gina R. Wilson & Margaret K. McBride & Kelly L. Forrester & Esther R. Adelson & Virginia , 2023. "Breaking the photoswitch speed limit," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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