Macroscopic single-domain graphene sheet on Ni(111)

Genki Odahara; Shigeki Otani; Chuhei Oshima; Masahiko Suzuki; Tsuneo Yasue; Takanori Koshikawa

doi:10.1002/sia.3742

Macroscopic single-domain graphene sheet on Ni(111)

Genki Odahara, Shigeki Otani, Chuhei Oshima, Masahiko Suzuki, Tsuneo Yasue, Takanori Koshikawa

Waseda University

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

8 Citations (Scopus)

Abstract

We observed in situ growth of a single graphene sheet on Ni(111) by low-energy electron microscopy. The sheet was grown epitaxially beyond the steps on the substrate. The crystalline shapes of graphene islands were clearly seen; the straight edges of the island are crossed at either 60 or 120°, and the linear edges shifted perpendicular to the edge keeping the equilibrium shape. Graphene islands were united to form a single sheet without any grain boundaries and any wrinkles. The Ni substrate of several centimeters in size was covered with a single-domain graphene sheet.

Original language	English
Pages (from-to)	1491-1493
Number of pages	3
Journal	Surface and Interface Analysis
Volume	43
Issue number	12
DOIs	https://doi.org/10.1002/sia.3742
Publication status	Published - 2011 Dec

Keywords

graphene
low energy electron microscopy
Ni(111)

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Surfaces and Interfaces
Materials Chemistry
Surfaces, Coatings and Films

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AU - Odahara, Genki

AU - Otani, Shigeki

AU - Oshima, Chuhei

AU - Suzuki, Masahiko

AU - Yasue, Tsuneo

AU - Koshikawa, Takanori

PY - 2011/12

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AB - We observed in situ growth of a single graphene sheet on Ni(111) by low-energy electron microscopy. The sheet was grown epitaxially beyond the steps on the substrate. The crystalline shapes of graphene islands were clearly seen; the straight edges of the island are crossed at either 60 or 120°, and the linear edges shifted perpendicular to the edge keeping the equilibrium shape. Graphene islands were united to form a single sheet without any grain boundaries and any wrinkles. The Ni substrate of several centimeters in size was covered with a single-domain graphene sheet.

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KW - low energy electron microscopy

KW - Ni(111)

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