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Dependence of the shape of graphene nanobubbles on trapped substance

Author

Listed:
  • H. Ghorbanfekr-Kalashami

    (Departement Fysica, Universiteit Antwerpen)

  • K. S. Vasu

    (School of Chemical Engineering and Analytical Science, University of Manchester
    National Graphene Institute, University of Manchester)

  • R. R. Nair

    (School of Chemical Engineering and Analytical Science, University of Manchester
    National Graphene Institute, University of Manchester)

  • François M. Peeters

    (Departement Fysica, Universiteit Antwerpen)

  • M. Neek-Amal

    (National Graphene Institute, University of Manchester
    Shahid Rajaee Teacher Training University
    Institute for Advanced Technologies, Shahid Rajaee Teacher Training University)

Abstract

Van der Waals (vdW) interaction between two-dimensional crystals (2D) can trap substances in high pressurized (of order 1 GPa) on nanobubbles. Increasing the adhesion between the 2D crystals further enhances the pressure and can lead to a phase transition of the trapped material. We found that the shape of the nanobubble can depend critically on the properties of the trapped substance. In the absence of any residual strain in the top 2D crystal, flat nanobubbles can be formed by trapped long hydrocarbons (that is, hexadecane). For large nanobubbles with radius 130 nm, our atomic force microscopy measurements show nanobubbles filled with hydrocarbons (water) have a cylindrical symmetry (asymmetric) shape which is in good agreement with our molecular dynamics simulations. This study provides insights into the effects of the specific material and the vdW pressure on the microscopic details of graphene bubbles.

Suggested Citation

  • H. Ghorbanfekr-Kalashami & K. S. Vasu & R. R. Nair & François M. Peeters & M. Neek-Amal, 2017. "Dependence of the shape of graphene nanobubbles on trapped substance," Nature Communications, Nature, vol. 8(1), pages 1-11, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15844
    DOI: 10.1038/ncomms15844
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    Cited by:

    1. Hae Yeon Lee & Soumya Sarkar & Kate Reidy & Abinash Kumar & Julian Klein & Kenji Watanabe & Takashi Taniguchi & James M. LeBeau & Frances M. Ross & Silvija Gradečak, 2022. "Strong and Localized Luminescence from Interface Bubbles Between Stacked hBN Multilayers," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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