Epitaxial growth and electronic properties of large hexagonal graphene domains on Cu(111) thin film

Hiroki Ago; Kenji Kawahara; Yui Ogawa; Shota Tanoue; Mark A. Bissett; Masaharu Tsuji; Hidetsugu Sakaguchi; Roland J. Koch; Felix Fromm; Thomas Seyller; Katsuyoshi Komatsu; Kazuhito Tsukagoshi

doi:10.7567/APEX.6.075101

Epitaxial growth and electronic properties of large hexagonal graphene domains on Cu(111) thin film

Hiroki Ago, Kenji Kawahara, Yui Ogawa, Shota Tanoue, Mark A. Bissett, Masaharu Tsuji, Hidetsugu Sakaguchi, Roland J. Koch, Felix Fromm, Thomas Seyller, Katsuyoshi Komatsu, Kazuhito Tsukagoshi

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

Large hexagonal single-crystalline domains of single-layer graphene are epitaxially grown by ambient-pressure chemical vapor deposition over a thin Cu(111) film deposited on c-plane sapphire. The hexagonal graphene domains with a maximum size of 100 m are oriented in the same direction due to the epitaxial growth. Reflecting high crystallinity, a clear band structure with the Dirac cone is observed by angle-resolved photoelectron spectroscopy (ARPES), and a high carrier mobility exceeding 4,000 cm2 V-1 s-1 is obtained on SiO ₂/Si at room temperature. Our epitaxial approach combined with large domain growth is expected to contribute to future electronic applications.

Original language	English
Article number	075101
Journal	Applied Physics Express
Volume	6
Issue number	7
DOIs	https://doi.org/10.7567/APEX.6.075101
Publication status	Published - Jul 2013

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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Epitaxial growth and electronic properties of large hexagonal graphene domains on Cu(111) thin film. / Ago, Hiroki; Kawahara, Kenji; Ogawa, Yui; Tanoue, Shota; Bissett, Mark A.; Tsuji, Masaharu; Sakaguchi, Hidetsugu; Koch, Roland J.; Fromm, Felix; Seyller, Thomas; Komatsu, Katsuyoshi; Tsukagoshi, Kazuhito.

In: Applied Physics Express, Vol. 6, No. 7, 075101, 07.2013.

Research output: Contribution to journal › Article › peer-review

Ago, Hiroki ; Kawahara, Kenji ; Ogawa, Yui ; Tanoue, Shota ; Bissett, Mark A. ; Tsuji, Masaharu ; Sakaguchi, Hidetsugu ; Koch, Roland J. ; Fromm, Felix ; Seyller, Thomas ; Komatsu, Katsuyoshi ; Tsukagoshi, Kazuhito. / Epitaxial growth and electronic properties of large hexagonal graphene domains on Cu(111) thin film. In: Applied Physics Express. 2013 ; Vol. 6, No. 7.

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abstract = "Large hexagonal single-crystalline domains of single-layer graphene are epitaxially grown by ambient-pressure chemical vapor deposition over a thin Cu(111) film deposited on c-plane sapphire. The hexagonal graphene domains with a maximum size of 100 m are oriented in the same direction due to the epitaxial growth. Reflecting high crystallinity, a clear band structure with the Dirac cone is observed by angle-resolved photoelectron spectroscopy (ARPES), and a high carrier mobility exceeding 4,000 cm2 V-1 s-1 is obtained on SiO 2/Si at room temperature. Our epitaxial approach combined with large domain growth is expected to contribute to future electronic applications.",

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AU - Ogawa, Yui

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AU - Bissett, Mark A.

AU - Tsuji, Masaharu

AU - Sakaguchi, Hidetsugu

AU - Koch, Roland J.

AU - Fromm, Felix

AU - Seyller, Thomas

AU - Komatsu, Katsuyoshi

AU - Tsukagoshi, Kazuhito

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Epitaxial growth and electronic properties of large hexagonal graphene domains on Cu(111) thin film

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