Interfacial electronic structure at metal/graphene contact

Sangwan Cho, Won Mook Choi, Yeonjin Yi, Seong Jun Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The electronic structure at the interface between Au and graphene was investigated by in-situ ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy. It was found that the π band state of the graphene is about 3.0 eV below the Fermi level. We present direct evidence of the absence of band bending formation at the interface between Au and graphene, even though the evidence shows the formation of band bending between Au and adsorbed oxygen. Additionally, a Au cluster size effect was also revealed in the Au 4f core-level binding energy shift.

Original languageEnglish
JournalCurrent Applied Physics
Volume11
Issue number4 SUPPL.
DOIs
Publication statusPublished - 2011 Jul 1

Fingerprint

Graphite
Graphene
Electronic structure
graphene
Metals
electronic structure
photoelectron spectroscopy
metals
Ultraviolet photoelectron spectroscopy
Core levels
ultraviolet spectroscopy
Fermi level
Binding energy
X ray photoelectron spectroscopy
binding energy
Oxygen
shift
oxygen
x rays

All Science Journal Classification (ASJC) codes

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

Cite this

Cho, Sangwan ; Choi, Won Mook ; Yi, Yeonjin ; Kang, Seong Jun. / Interfacial electronic structure at metal/graphene contact. In: Current Applied Physics. 2011 ; Vol. 11, No. 4 SUPPL.
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Interfacial electronic structure at metal/graphene contact. / Cho, Sangwan; Choi, Won Mook; Yi, Yeonjin; Kang, Seong Jun.

In: Current Applied Physics, Vol. 11, No. 4 SUPPL., 01.07.2011.

Research output: Contribution to journalArticle

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