Raman spectroscopy of graphene and bilayer under biaxial strain: Bubbles and balloons

Jakob Zabel, Rahul R. Nair, Anna Ott, Thanasis Georgiou, Andre K. Geim, Kostya S. Novoselov, Cinzia Casiraghi

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We use graphene bubbles to study the Raman spectrum of graphene under biaxial (e.g., isotropic) strain. Our Gruneisen parameters are in excellent agreement with the theoretical values. Discrepancy in the previously reported values is attributed to the interaction of graphene with the substrate. Bilayer balloons (intentionally pressurized membranes) have been used to avoid the effect of the substrate and to study the dependence of strain on the interlayer interactions. © 2011 American Chemical Society.
    Original languageEnglish
    Pages (from-to)617-621
    Number of pages4
    JournalNano Letters
    Volume12
    Issue number2
    DOIs
    Publication statusPublished - 8 Feb 2012

    Keywords

    • bilayer
    • Graphene
    • Gruneisen parameters
    • Raman spectroscopy
    • stacking
    • strain

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