Separation-dependent electronic transparency of monolayer graphene membranes on III-V semiconductor substrates

Kevin T. He, Justin C. Koepke, Salvador Barraza-Lopez, Joseph W Lyding

Research output: Contribution to journalArticle

Abstract

Ultrahigh vacuum scanning tunneling microscopy and first-principles calculations have been carried out to study monolayer graphene nanomembranes deposited in situ onto UHV-cleaved GaAs(110) and InAs(110) surfaces. A bias-dependent semitransparency effect is observed in which the substrate atomic structure is clearly visible through the graphene monolayer. Statistical data analysis and density functional theory calculations suggest that this semitransparency phenomenon is due to the scanning tunneling microscope tip pushing the graphene membrane away from its equilibrium location and closer to the substrate surface, causing their electronic states to intermix.

Original languageEnglish (US)
Pages (from-to)3446-3452
Number of pages7
JournalNano letters
Volume10
Issue number9
DOIs
StatePublished - Sep 8 2010

Fingerprint

Graphite
Transparency
Graphene
Monolayers
graphene
membranes
Membranes
Substrates
electronics
pushing
Electronic states
Ultrahigh vacuum
Scanning tunneling microscopy
atomic structure
ultrahigh vacuum
Density functional theory
scanning tunneling microscopy
Microscopes
microscopes
density functional theory

Keywords

  • GaAs
  • Graphene
  • InAs
  • STM
  • density functional theory

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Separation-dependent electronic transparency of monolayer graphene membranes on III-V semiconductor substrates. / He, Kevin T.; Koepke, Justin C.; Barraza-Lopez, Salvador; Lyding, Joseph W.

In: Nano letters, Vol. 10, No. 9, 08.09.2010, p. 3446-3452.

Research output: Contribution to journalArticle

He, Kevin T. ; Koepke, Justin C. ; Barraza-Lopez, Salvador ; Lyding, Joseph W. / Separation-dependent electronic transparency of monolayer graphene membranes on III-V semiconductor substrates. In: Nano letters. 2010 ; Vol. 10, No. 9. pp. 3446-3452.
@article{f8033329a9d24fe686262a0aa4b54163,
title = "Separation-dependent electronic transparency of monolayer graphene membranes on III-V semiconductor substrates",
abstract = "Ultrahigh vacuum scanning tunneling microscopy and first-principles calculations have been carried out to study monolayer graphene nanomembranes deposited in situ onto UHV-cleaved GaAs(110) and InAs(110) surfaces. A bias-dependent semitransparency effect is observed in which the substrate atomic structure is clearly visible through the graphene monolayer. Statistical data analysis and density functional theory calculations suggest that this semitransparency phenomenon is due to the scanning tunneling microscope tip pushing the graphene membrane away from its equilibrium location and closer to the substrate surface, causing their electronic states to intermix.",
keywords = "GaAs, Graphene, InAs, STM, density functional theory",
author = "He, {Kevin T.} and Koepke, {Justin C.} and Salvador Barraza-Lopez and Lyding, {Joseph W}",
year = "2010",
month = "9",
day = "8",
doi = "10.1021/nl101527e",
language = "English (US)",
volume = "10",
pages = "3446--3452",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "9",

}

TY - JOUR

T1 - Separation-dependent electronic transparency of monolayer graphene membranes on III-V semiconductor substrates

AU - He, Kevin T.

AU - Koepke, Justin C.

AU - Barraza-Lopez, Salvador

AU - Lyding, Joseph W

PY - 2010/9/8

Y1 - 2010/9/8

N2 - Ultrahigh vacuum scanning tunneling microscopy and first-principles calculations have been carried out to study monolayer graphene nanomembranes deposited in situ onto UHV-cleaved GaAs(110) and InAs(110) surfaces. A bias-dependent semitransparency effect is observed in which the substrate atomic structure is clearly visible through the graphene monolayer. Statistical data analysis and density functional theory calculations suggest that this semitransparency phenomenon is due to the scanning tunneling microscope tip pushing the graphene membrane away from its equilibrium location and closer to the substrate surface, causing their electronic states to intermix.

AB - Ultrahigh vacuum scanning tunneling microscopy and first-principles calculations have been carried out to study monolayer graphene nanomembranes deposited in situ onto UHV-cleaved GaAs(110) and InAs(110) surfaces. A bias-dependent semitransparency effect is observed in which the substrate atomic structure is clearly visible through the graphene monolayer. Statistical data analysis and density functional theory calculations suggest that this semitransparency phenomenon is due to the scanning tunneling microscope tip pushing the graphene membrane away from its equilibrium location and closer to the substrate surface, causing their electronic states to intermix.

KW - GaAs

KW - Graphene

KW - InAs

KW - STM

KW - density functional theory

UR - http://www.scopus.com/inward/record.url?scp=77956425973&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956425973&partnerID=8YFLogxK

U2 - 10.1021/nl101527e

DO - 10.1021/nl101527e

M3 - Article

VL - 10

SP - 3446

EP - 3452

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 9

ER -