Reversible mechanical and electrical properties of ripped graphene

J. Henry Hinnefeld, Stephen T. Gill, Shuze Zhu, William J. Swanson, Teng Li, Nadya Mason

Research output: Contribution to journalArticle

Abstract

We examine the mechanical properties of graphene devices stretched on flexible elastomer substrates. Using atomic force microscopy, electrical transport measurements, and mechanics simulations, we show that microrips form in the graphene during the initial application of tensile strain; however, subsequent applications of the same tensile strain elastically open and close the existing rips. Correspondingly, while the initial tensile strain degrades the devices' transport properties, subsequent strain-relaxation cycles affect transport only moderately, and in a largely reversible fashion. Graphene's electrical and mechanical robustness even after partial mechanical failure is unique among conducting thin films. This understanding of the creation and dynamics of rips in graphene is relevant to the design of flexible graphene-based devices which are required to function under strain.

Original languageEnglish (US)
Article number014010
JournalPhysical Review Applied
Volume3
Issue number1
DOIs
StatePublished - Jan 30 2015

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this