Confining crack propagation in defective Graphene

Guillermo Lopez-Polin, Julio Gomez-Herrero, Cristina Gomez-Navarro

    Research output: Contribution to journalArticlepeer-review


    Crack propagation in graphene is essential to understand mechanical failure in 2D materials. We report a systematic study of crack propagation in graphene as a function of defect content. Nanoindentations and subsequent images of graphene membranes with controlled induced defects show that while tears in pristine graphene span microns length, crack propagation is strongly reduced in the presence of defects. Accordingly, graphene oxide exhibits minor crack propagation. Our work suggests controlled defect creation as an approach to avoid catastrophic failure in graphene.
    Original languageEnglish
    Pages (from-to)2050-2054
    JournalNano Letters
    Issue number3
    Publication statusPublished - Mar 2015


    • Graphene
    • defects
    • crack propagation
    • toughness
    • atomic force microscopy


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