Macroscopic single-domain graphene growth on polycrystalline nickel surface

Genki Odahara, Hiroki Hibino, Nanao Nakayama, Tomoyuki Shimbata, Chuhei Oshima, Shigeki Otani, Masahiko Suzuki, Tsuneo Yasue, Takanori Koshikawa

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We used low-energy electron microscopy to observe, in situ, the growth of graphene sheets on a polycrystalline Ni substrate through surface segregation phenomena. On a flat Ni surface with roughness of less than 5 nm, macroscopic single-domain graphene grew from an extremely small number of nucleation sites. The single-domain graphene, free of rotational disorder, expanded continuously in a carpet like manner, not only over steps on the substrate surface, but also over its domain boundaries, independent of the Miller index plane. These findings might provide a breakthrough in fabricating expansive single-domain graphene sheets on polycrystalline metal surfaces.

Original languageEnglish
Article number035501
JournalApplied Physics Express
Volume5
Issue number3
DOIs
Publication statusPublished - 2012 Mar

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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  • Cite this

    Odahara, G., Hibino, H., Nakayama, N., Shimbata, T., Oshima, C., Otani, S., Suzuki, M., Yasue, T., & Koshikawa, T. (2012). Macroscopic single-domain graphene growth on polycrystalline nickel surface. Applied Physics Express, 5(3), [035501]. https://doi.org/10.1143/APEX.5.035501