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Adhesion of two-dimensional titanium carbides (MXenes) and graphene to silicon

Author

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  • Yanxiao Li

    (Missouri University of Science and Technology)

  • Shuohan Huang

    (Missouri University of Science and Technology)

  • Congjie Wei

    (Missouri University of Science and Technology)

  • Chenglin Wu

    (Missouri University of Science and Technology)

  • Vadym N. Mochalin

    (Missouri University of Science and Technology
    Missouri University of Science and Technology)

Abstract

Two-dimensional transition metal carbides (MXenes) have attracted a great interest of the research community as a relatively recently discovered large class of materials with unique electronic and optical properties. Understanding of adhesion between MXenes and various substrates is critically important for MXene device fabrication and performance. We report results of direct atomic force microscopy (AFM) measurements of adhesion of two MXenes (Ti3C2Tx and Ti2CTx) with a SiO2 coated Si spherical tip. The Maugis-Dugdale theory was applied to convert the AFM measured adhesion force to adhesion energy, while taking into account surface roughness. The obtained adhesion energies were compared with those for mono-, bi-, and tri-layer graphene, as well as SiO2 substrates. The average adhesion energies for the MXenes are 0.90 ± 0.03 J m−2 and 0.40 ± 0.02 J m−2 for thicker Ti3C2Tx and thinner Ti2CTx, respectively, which is of the same order of magnitude as that between graphene and silica tip.

Suggested Citation

  • Yanxiao Li & Shuohan Huang & Congjie Wei & Chenglin Wu & Vadym N. Mochalin, 2019. "Adhesion of two-dimensional titanium carbides (MXenes) and graphene to silicon," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10982-8
    DOI: 10.1038/s41467-019-10982-8
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    Cited by:

    1. Josef Schätz & Navin Nayi & Jonas Weber & Christoph Metzke & Sebastian Lukas & Jürgen Walter & Tim Schaffus & Fabian Streb & Eros Reato & Agata Piacentini & Annika Grundmann & Holger Kalisch & Michael, 2024. "Button shear testing for adhesion measurements of 2D materials," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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