Raman study on the interlayer interactions and the band structure of bilayer graphene synthesized by alcohol chemical vapor deposition

Makoto Okano, Ryusuke Matsunaga, Kazunari Matsuda, Satoru Masubuchi, Tomoki MacHida, Yoshihiko Kanemitsu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We investigated the electronic band structure and interlayer interactions in graphene synthesized by alcohol-chemical vapor deposition (a-CVD) using microprobe Raman spectroscopy and tight-binding band-structure calculations. The number of graphene layers was determined from the spectrally integrated intensity ratios of the G phonon to 2D phonon peaks. We found that the value of the parameter determining interlayer interactions in a-CVD bilayer graphene was less than half that of exfoliated bilayer graphene. The weak interlayer interaction in a-CVD bilayer graphene was attributed to non-AB stacking order.

Original languageEnglish
Article number151916
JournalApplied Physics Letters
Volume99
Issue number15
DOIs
Publication statusPublished - 2011 Oct 10
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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