Surface morphology, structural and electronic properties of graphene on Ge(111) via direct deposition of solid-state carbon atoms

Trung T. Pham, Nguyen Dang Nam, Robert Sporken

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

In this paper, we report graphene on Ge(111) by using an electron beam evaporation under appropriate conditions in ultra high vacuum. Surface morphology, structural and electronic properties of graphene on Ge(111) substrate are investigated in detail by low energy electron diffraction, Auger electron spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, optical microscopy, scanning electron microscopy, atomic force microscopy and scanning tunneling microscopy. We found that the crystalline quality of graphene reduces with increasing the amount of deposited carbon atoms during graphene formation at near melting temperature of the Ge substrate.

langueAnglais
Pages84-90
Nombre de pages7
journalThin Solid Films
Volume639
Les DOIs
étatPublié - 1 oct. 2017

Empreinte digitale

Graphite
Electronic properties
Graphene
Surface morphology
Structural properties
graphene
Carbon
solid state
Atoms
carbon
electronics
atoms
Low energy electron diffraction
Ultrahigh vacuum
Scanning tunneling microscopy
Substrates
Auger electron spectroscopy
Photoelectron spectroscopy
X ray spectroscopy
ultrahigh vacuum

mots-clés

    Citer ceci

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    title = "Surface morphology, structural and electronic properties of graphene on Ge(111) via direct deposition of solid-state carbon atoms",
    abstract = "In this paper, we report graphene on Ge(111) by using an electron beam evaporation under appropriate conditions in ultra high vacuum. Surface morphology, structural and electronic properties of graphene on Ge(111) substrate are investigated in detail by low energy electron diffraction, Auger electron spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, optical microscopy, scanning electron microscopy, atomic force microscopy and scanning tunneling microscopy. We found that the crystalline quality of graphene reduces with increasing the amount of deposited carbon atoms during graphene formation at near melting temperature of the Ge substrate.",
    keywords = "Direct carbon deposition, E-beam evaporation, Graphene on Ge, Graphitic carbon, sp bonded carbon",
    author = "Pham, {Trung T.} and Nam, {Nguyen Dang} and Robert Sporken",
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    Surface morphology, structural and electronic properties of graphene on Ge(111) via direct deposition of solid-state carbon atoms. / Pham, Trung T.; Nam, Nguyen Dang; Sporken, Robert.

    Dans: Thin Solid Films, Vol 639, 01.10.2017, p. 84-90.

    Résultats de recherche: Contribution à un journal/une revueArticle

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    KW - Direct carbon deposition

    KW - E-beam evaporation

    KW - Graphene on Ge

    KW - Graphitic carbon

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