Measuring and Manipulating the Adhesion of Graphene

ORAL

Abstract

We present a technique to measure the surface energies between two dimensional materials and substrates. As a specific example, we characterize the delamination of single-layer graphene from monolayers of pyrene tethered to glass in water. We maximize the graphene adhesion energy by varying the density of pyrene in the monolayer, enabling high-fidelity graphene-transfer protocols that can resist failure under sonication. Additionally, we find that the energies of graphene peeling and re-adhesion exhibit a dramatic rate-independent hysteresis, differing by a factor of 100. This work establishes a rational means to control the adhesion of 2D materials, and enables a systematic approach to engineer stimuli-responsive adhesives and mechanical technologies at the nanoscale.

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Presenters

  • Marc Miskin

    Laboratory of Atomic and Solid State Physics, Cornell University, Physics, Cornell University, Cornell University

Authors

  • Marc Miskin

    Laboratory of Atomic and Solid State Physics, Cornell University, Physics, Cornell University, Cornell University

  • Chao Sun

    Department of Chemistry, Northwestern University

  • Itai Cohen

    Laboratory of Atomic and Solid State Physics, Cornell University, Physics, Cornell University, Cornell University, Department of Physics, Cornell University, Cornell Univ

  • William Dichtel

    Department of Chemistry, Northwestern University, Chemistry, Northwestern University, Northwestern University

  • Paul McEuen

    Laboratory of Atomic and Solid State Physics, Cornell University, Cornell Univ, Physics, Cornell University, Cornell University