Towards ballistic transport in graphene

Xu Du, Ivan Skachko, Eva Y. Andrei

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Graphene is a fascinating material for exploring fundamental science questions as well as a potential building block for novel electronic applications. In order to realize the full potential of this material the fabrication techniques of graphene devices, still in their infancy, need to be refined to better isolate the graphene layer from the environment. We present results from a study on the inuence of extrinsic factors on the quality of graphene devices including material defects, lithography, doping by metallic leads and the substrate. The main finding is that trapped Coulomb scatterers associated with the substrate are the primary factor reducing the quality of graphene devices. A fabrication scheme is proposed to produce high quality graphene devices dependably and repro-ducibly. In these devices, the transport properties approach theoretical predictions of ballistic transport.

Original languageEnglish (US)
Title of host publicationCondensed Matter Theories
PublisherWorld Scientific Publishing Co.
Pages291-300
Number of pages10
Volume23
ISBN (Electronic)9789812836625
ISBN (Print)9812836616, 9789812836618
DOIs
StatePublished - Jan 1 2008

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Engineering
  • General Materials Science
  • General Physics and Astronomy

Keywords

  • Graphene
  • Transport

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