Spatially Controlled Nucleation of Single-Crystal Graphene on Cu Assisted by Stacked Ni

Dong Ding, Pablo Solís-Fernández, Hiroki Hibino, Hiroki Ago

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

In spite of recent progress of graphene growth using chemical vapor deposition, it is still a challenge to precisely control the nucleation site of graphene for the development of wafer-scale single-crystal graphene. In addition, the postgrowth patterning used for device fabrication deteriorates the quality of graphene. Herein we demonstrate the site-selective nucleation of single-crystal graphene on Cu foil based on spatial control of the local CH4 concentration by a perforated Ni foil. The catalytically active Ni foil acts as a CH4 modulator, resulting in millimeter-scale single-crystal grains at desired positions. The perforated Ni foil also allows to synthesize patterned graphene without any postgrowth processing. Furthermore, the uniformity of monolayer graphene is significantly improved when a plain Ni foil is placed below the Cu. Our findings offer a facile and effective way to control the nucleation of high-quality graphene, meeting the requirements of industrial processing.

Original languageEnglish
Pages (from-to)11196-11204
Number of pages9
JournalACS Nano
Volume10
Issue number12
DOIs
Publication statusPublished - Dec 27 2016

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Graphite
Graphene
graphene
Nucleation
Single crystals
nucleation
Metal foil
single crystals
foils
Processing
plains
Modulators
modulators
Chemical vapor deposition
Monolayers
vapor deposition
wafers
Fabrication
requirements
fabrication

All Science Journal Classification (ASJC) codes

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

Cite this

Spatially Controlled Nucleation of Single-Crystal Graphene on Cu Assisted by Stacked Ni. / Ding, Dong; Solís-Fernández, Pablo; Hibino, Hiroki; Ago, Hiroki.

In: ACS Nano, Vol. 10, No. 12, 27.12.2016, p. 11196-11204.

Research output: Contribution to journalArticle

Ding, Dong ; Solís-Fernández, Pablo ; Hibino, Hiroki ; Ago, Hiroki. / Spatially Controlled Nucleation of Single-Crystal Graphene on Cu Assisted by Stacked Ni. In: ACS Nano. 2016 ; Vol. 10, No. 12. pp. 11196-11204.
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