Morphology and Fluctuations of Suspended Graphene Oxide Sheets

POSTER

Abstract

We study the morphology and fluctuations of suspended graphene oxide sheets by phase contrast and confocal microscopy. The morphology of graphene oxide sheets is manipulated by changing solvent pH. Labeling the graphene oxide sheets with quantum dots permits further study of morphology, as well as the possible study of the fluctuations, through the use of confocal microscopy. The direct imaging studies of the morphology are complimented by light scattering studies, conventionally used to characterize morphology of colloidal membranes. These direct imaging studies can lead to measurements of the mechanical properties of graphene oxide in solution.

Authors

  • Matthew Gratale

    Department of Physics and Astronomy, University of Pennsylvania

  • Daniel T. N. Chen

    Department of Physics and Astronomy, University of Pennsylvania

  • Zexin Zhang

    University of Pennsylvania, Department of Physics and Astronomy, University of Pennsylvania

  • Zhengtang Luo

    University of Pennsylvania, Department of Physics and Astronomy, University of Pennsylvania

  • Erik Smith

    Department of Physics and Astronomy, Swarthmore College

  • Peter Collings

    Department of Physics and Astronomy, Swarthmore College

  • Alan T. Johnson

    University of Pennsylvania, U. Pennsylvania, Department of Physics and Astronomy, University of Pennsylvania

  • Arjun Yodh

    University of Pennsylvania, Department of Physics and Astronomy, University of Pennsylvania