Dependence of the shape of graphene nanobubbles on trapped substance
10.1038/ncomms15844
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractVan 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.

Authors 5
  1. H. Ghorbanfekr-Kalashami (first)
  2. K. S. Vasu (additional)
  3. R. R. Nair (additional)
  4. François M. Peeters (additional)
  5. M. Neek-Amal (additional)
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Dates
Type When
Created 8 years, 2 months ago (June 16, 2017, 7:20 a.m.)
Deposited 1 year, 2 months ago (June 24, 2024, 4:27 p.m.)
Indexed 3 weeks, 5 days ago (July 28, 2025, 5:42 p.m.)
Issued 8 years, 2 months ago (June 16, 2017)
Published 8 years, 2 months ago (June 16, 2017)
Published Online 8 years, 2 months ago (June 16, 2017)
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@article{Ghorbanfekr_Kalashami_2017, title={Dependence of the shape of graphene nanobubbles on trapped substance}, volume={8}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms15844}, DOI={10.1038/ncomms15844}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Ghorbanfekr-Kalashami, H. and Vasu, K. S. and Nair, R. R. and Peeters, François M. and Neek-Amal, M.}, year={2017}, month=jun }