Epitaxial Growth and Electronic Properties of Large Hexagonal Graphene Domains on Cu(111) Thin Film

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概要

• 論文の詳細を見る

• 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 μm 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 cm²V^-1s^-1is obtained on SiO<inf>2</inf>/Si at room temperature. Our epitaxial approach combined with large domain growth is expected to contribute to future electronic applications.

• 2013-07-25

著者

• Tsuji Masaharu

  Institute For Materials Chemistry And Engineering Kyushu University

• Ago Hiroki

  Institute For Materials Chemistry And Engineering Kyushu University

• Tsukagoshi Kazuhito

  International Center For Materials And Nanoarchitectonics National Institute For Materials Science

• Ogawa Yui

  Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan

• Tsukagoshi Kazuhito

  International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan

• Tsuji Masaharu

  Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan

• Kawahara Kenji

  Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan

• Tanoue Shota

  Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan

• Bissett Mark

  Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan

• Sakaguchi Hidetsugu

  Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan

• Koch Roland

  Technische Universität Chemnitz, Institut für Physik, 09126 Chemnitz, Germany

• Fromm Felix

  Technische Universität Chemnitz, Institut für Physik, 09126 Chemnitz, Germany

• Seyller Thomas

  Technische Universität Chemnitz, Institut für Physik, 09126 Chemnitz, Germany

• Komatsu Katsuyoshi

  International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan

• Koch Roland

  Technische Universität Chemnitz, Institut für Physik, 09126 Chemnitz, Germany

• Fromm Felix

  Technische Universität Chemnitz, Institut für Physik, 09126 Chemnitz, Germany

• Seyller Thomas

  Technische Universität Chemnitz, Institut für Physik, 09126 Chemnitz, Germany

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