Edge-dependent transport properties in graphene

Hidenori Goto, Eri Uesugi, Ritsuko Eguchi, Akihiko Fujiwara, Yoshihiro Kubozono

Research output: Contribution to journal › Article

13 Citations (Scopus)

Abstract

Graphene has two kinds of edges which have different electronic properties. A singular electronic state emerges at zigzag edges, while it disappears at armchair edges. We study the edge-dependent transport properties in few-layer graphene by applying a side gate voltage to the edge with an ionic liquid. The devices indicating a conductance peak at the charge neutrality point have zigzag edges, confirmed by micro-Raman spectroscopy mapping. The hopping transport between zigzag edges increases the conductance.

Original languageEnglish
Pages (from-to)1126-1130
Number of pages5
JournalNano Letters
Volume13
Issue number3
DOIs
Publication statusPublished - Mar 13 2013

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Transport properties
Graphene
graphene
transport properties
Ionic Liquids
Electronic states
Ionic liquids
Electronic properties
Raman spectroscopy
Electric potential
electronics
electric potential
liquids

Keywords

  • edge
  • flat band
  • Graphene
  • ionic liquid gate
  • Raman spectroscopy
  • transport property

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Edge-dependent transport properties in graphene. / Goto, Hidenori; Uesugi, Eri; Eguchi, Ritsuko; Fujiwara, Akihiko; Kubozono, Yoshihiro.

In: Nano Letters, Vol. 13, No. 3, 13.03.2013, p. 1126-1130.

Research output: Contribution to journal › Article

Goto, H, Uesugi, E, Eguchi, R, Fujiwara, A & Kubozono, Y 2013, 'Edge-dependent transport properties in graphene', Nano Letters, vol. 13, no. 3, pp. 1126-1130. https://doi.org/10.1021/nl3044844
Goto H, Uesugi E, Eguchi R, Fujiwara A, Kubozono Y. Edge-dependent transport properties in graphene. Nano Letters. 2013 Mar 13;13(3):1126-1130. https://doi.org/10.1021/nl3044844
Goto, Hidenori ; Uesugi, Eri ; Eguchi, Ritsuko ; Fujiwara, Akihiko ; Kubozono, Yoshihiro. / Edge-dependent transport properties in graphene. In: Nano Letters. 2013 ; Vol. 13, No. 3. pp. 1126-1130.
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