High-yield production and transfer of graphene flakes obtained by anodic bonding

Thomas Moldt, Axel Eckmann, Philipp Klar, Sergey V. Morozov, Alexander A. Zhukov, Kostya S. Novoselov, Cinzia Casiraghi

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We report large-yield production of graphene flakes on glass by anodic bonding. Under optimum conditions, we counted several tens of flakes with lateral size around 20-30 μm and a few tens of flakes with larger size. About 60-70% of the flakes have a negligible D peak. We show that it is possible to easily transfer the flakes by the wedging technique. The transfer on silicon does not damage graphene and lowers the doping. The charge mobility of the transferred flakes on silicon is on the order of 6000 cm2/V s (at a carrier concentration of 1012 cm-2), which is typical for devices prepared on this substrate with exfoliated graphene. © 2011 American Chemical Society.
    Original languageEnglish
    Pages (from-to)7700-7706
    Number of pages6
    JournalACS Nano
    Volume5
    Issue number10
    DOIs
    Publication statusPublished - 25 Oct 2011

    Keywords

    • anodic bonding
    • graphene
    • Raman spectroscopy
    • transfer

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