The transport and quantum capacitance properties of epitaxial graphene

J. L. Xia, Fang Chen, J. L. Tedesco, D. K. Gaskill, R. L. Myers-Ward, C. R. Eddy, D. K. Ferry, Nongjian Tao

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Epitaxial graphene field effect transistors were fabricated, characterized, and studied. Both the capacitance and transport measurements were performed on the same devices using an electrochemical gate. The quantum capacitance of the epitaxial graphene was extracted, which was similar to that of exfoliated graphene near the Dirac point, but it exhibits a large sublinear behavior at high carrier densities. The recently developed self-consistent theory for charged impurities in graphene is found to provide a reasonable description of the transport data, but a more complete theory is needed to explain both the transport and quantum capacitance data for the epitaxial graphene devices.

Original languageEnglish (US)
Article number162101
JournalApplied Physics Letters
Volume96
Issue number16
DOIs
StatePublished - Apr 19 2010

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graphene
capacitance
field effect transistors
impurities

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Xia, J. L., Chen, F., Tedesco, J. L., Gaskill, D. K., Myers-Ward, R. L., Eddy, C. R., ... Tao, N. (2010). The transport and quantum capacitance properties of epitaxial graphene. Applied Physics Letters, 96(16), [162101]. https://doi.org/10.1063/1.3396982

The transport and quantum capacitance properties of epitaxial graphene. / Xia, J. L.; Chen, Fang; Tedesco, J. L.; Gaskill, D. K.; Myers-Ward, R. L.; Eddy, C. R.; Ferry, D. K.; Tao, Nongjian.

In: Applied Physics Letters, Vol. 96, No. 16, 162101, 19.04.2010.

Research output: Contribution to journalArticle

Xia, JL, Chen, F, Tedesco, JL, Gaskill, DK, Myers-Ward, RL, Eddy, CR, Ferry, DK & Tao, N 2010, 'The transport and quantum capacitance properties of epitaxial graphene', Applied Physics Letters, vol. 96, no. 16, 162101. https://doi.org/10.1063/1.3396982
Xia JL, Chen F, Tedesco JL, Gaskill DK, Myers-Ward RL, Eddy CR et al. The transport and quantum capacitance properties of epitaxial graphene. Applied Physics Letters. 2010 Apr 19;96(16). 162101. https://doi.org/10.1063/1.3396982
Xia, J. L. ; Chen, Fang ; Tedesco, J. L. ; Gaskill, D. K. ; Myers-Ward, R. L. ; Eddy, C. R. ; Ferry, D. K. ; Tao, Nongjian. / The transport and quantum capacitance properties of epitaxial graphene. In: Applied Physics Letters. 2010 ; Vol. 96, No. 16.
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