In-situ observation of graphene growth on Ni(111)

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

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Graphene growth of mono-, bi- and tri-layers on Ni(111) through surface segregation was observed in situ by low energy electron microscopy. The carbon segregation was controlled by adjusting substrate temperature from 1200 K to 1050 K. After the completion of the first layer at 1125 K, the second layer grew at the interface between the first-layer and the substrate at 1050 K. The third layer also started to grow at the same temperature, 1050 K. All the layers exhibited a 1 × 1 atomic structure. The edges of the first-layer islands were straight lines, reflecting the hexagonal atomic structure. On the other hand, the shapes of the second-layer islands were dendritic. The edges of the third-layer islands were again straight lines similar to those of the first-layer islands. The phenomena presumably originate from the changes of interfacial-bond strength of the graphene to Ni substrate depending on the graphene thickness. No nucleation site of graphene layers was directly observed. All the layers expanded out of the field of view and covered the surface. The number of nucleation sites is extremely small on Ni(111) surface. This finding might open the way to grow the high quality, single-domain graphene crystals.

Original languageEnglish
Pages (from-to)1095-1098
Number of pages4
JournalSurface Science
Volume605
Issue number11-12
DOIs
Publication statusPublished - 2011 Jun

Fingerprint

Graphite
Graphene
graphene
Nucleation
Substrates
Surface segregation
Electron microscopy
Carbon
atomic structure
Temperature
Crystals
nucleation
field of view
electron microscopy

Keywords

  • Graphene
  • Low energy electron microscopy
  • Ni(111)
  • Surface segregation

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Condensed Matter Physics
  • Materials Chemistry
  • Surfaces, Coatings and Films

Cite this

Odahara, G., Otani, S., Oshima, C., Suzuki, M., Yasue, T., & Koshikawa, T. (2011). In-situ observation of graphene growth on Ni(111). Surface Science, 605(11-12), 1095-1098. https://doi.org/10.1016/j.susc.2011.03.011

In-situ observation of graphene growth on Ni(111). / Odahara, Genki; Otani, Shigeki; Oshima, Chuhei; Suzuki, Masahiko; Yasue, Tsuneo; Koshikawa, Takanori.

In: Surface Science, Vol. 605, No. 11-12, 06.2011, p. 1095-1098.

Research output: Contribution to journalArticle

Odahara, G, Otani, S, Oshima, C, Suzuki, M, Yasue, T & Koshikawa, T 2011, 'In-situ observation of graphene growth on Ni(111)', Surface Science, vol. 605, no. 11-12, pp. 1095-1098. https://doi.org/10.1016/j.susc.2011.03.011
Odahara G, Otani S, Oshima C, Suzuki M, Yasue T, Koshikawa T. In-situ observation of graphene growth on Ni(111). Surface Science. 2011 Jun;605(11-12):1095-1098. https://doi.org/10.1016/j.susc.2011.03.011
Odahara, Genki ; Otani, Shigeki ; Oshima, Chuhei ; Suzuki, Masahiko ; Yasue, Tsuneo ; Koshikawa, Takanori. / In-situ observation of graphene growth on Ni(111). In: Surface Science. 2011 ; Vol. 605, No. 11-12. pp. 1095-1098.
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