Identifying Few-Layer Graphene with Raman Spectroscopy

ORAL

Abstract

Few-layer graphene (FLG) exists in various crystallographic stacking sequences, which can strongly influence the material's electronic properties. We characterize stacking order in FLG using the distinctive features of the Raman 2D-mode's full-width at half-maximum (FWHM), relative peak size, and shape. Raman imaging allows us to visualize directly the spatial distribution of bilayer graphene, Bernal (ABA) trilayer graphene, and rhombohedral (ABC) trilayer graphene.

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Authors

  • David Tran

    • University of California, Riverside

  • Nathaniel Gillgren

    • University of California, Riverside

  • Kevin Myhro

    • University of California, Riverside

  • Yongjin Lee

    • University of California, Riverside

  • Jairo Velasco Jr.

    • University of California, Riverside

  • Lei Jing

    • University of California, Riverside

  • Marc Bockrath

    • University of California, Riverside

  • Jeanie Lau

    • University of California, Riverside