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    Disorder density of states in supported graphene

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    Disorder density of states in supported graphene_FINAL.pdf (1.365Mb)
    Date
    2014
    Author
    Lee, Ji Ung
    Sinha, Dhiraj
    Publisher
    Journal of Applied Physics
    Metadata
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    Subject
    nanotechnology
    graphene
    disorder density of states
    transient current analysis
    Abstract
    Transport in graphene is impacted by disorder. Disorder, which can occur on supported graphene, manifests as a significant shift in the Fermi level position from the charge neutrality point (Dirac point) and leads to carrier scattering. Here, we provide a direct measurement of the disorder density of states (DOS). We show that the disorder is extrinsic to graphene and is characterized by a continuum of DOS located at the graphene-substrate interface. A key feature is a Gaussian-like DOS that causes pinning of the Fermi level and the shift in the Dirac point.
    Description
    Peer-reviewed journal article
    URI
    http://hdl.handle.net/1951/68790
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    • SUNY Polytechnic Institute Faculty and Staff Research, Publications, and Creative Works [63]

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