Current Annealing~of Suspended Graphene Atomic Membranes

ORAL

Abstract

Using a multi-level lithographical technique, we are able to suspend graphene membranes coupled to vast majority of electrode materials. The device's mobility is significantly improved upon current annealing. By combining transport measurement with in-situ SEM imaging, we are able to monitor morphological changes in graphene and correlate with its current-voltage characteristics, thus optimizing the current annealing process.

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Authors

  • Fenglin Wang

    • UCR Department of Physics and Astronomy

  • Jairo Velasco Jr.

  • Zeng Zhao

  • Hang Zhang

  • Philip Kratz

  • Lei Jing

  • Wenzhong Bao

  • Chunning Lau