Evolution of surface morphology and electronic structure of few layer graphene after low energy Ar ion irradiation

S. H. Al-Harthi; A. Karaa; T. Hysen; M. Elzain; A. T. Al-Hinai; M. T.Z. Myint

doi:10.1063/1.4767290

Evolution of surface morphology and electronic structure of few layer graphene after low energy Ar ion irradiation

S. H. Al-Harthi^*, A. Karaa, T. Hysen, M. Elzain, A. T. Al-Hinai, M. T.Z. Myint

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We report on co-existing dual anisotropy ripple formation, sp bonding transformation, and variation in the delocalized π electron system in 1 keV Ar⁺ ion irradiated few-layer graphene surfaces. Ripples in directions, perpendicular and parallel to the ion beam were found. The irradiation effect and the transition from the sp²-bonding to sp ³-hybridized state were analyzed from the deconvolution of the C (1s) peak and from the shape of the derivative of the Auger transition spectra. The results suggest a plausible mechanism for tailoring of few-layer graphene electronic band structure with interlayer coupling tuned by the ion irradiation.

Original language	English
Article number	213107
Journal	Applied Physics Letters
Volume	101
Issue number	21
DOIs	https://doi.org/10.1063/1.4767290
Publication status	Published - Nov 19 2012

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We report on co-existing dual anisotropy ripple formation, sp bonding transformation, and variation in the delocalized π electron system in 1 keV Ar+ ion irradiated few-layer graphene surfaces. Ripples in directions, perpendicular and parallel to the ion beam were found. The irradiation effect and the transition from the sp2-bonding to sp 3-hybridized state were analyzed from the deconvolution of the C (1s) peak and from the shape of the derivative of the Auger transition spectra. The results suggest a plausible mechanism for tailoring of few-layer graphene electronic band structure with interlayer coupling tuned by the ion irradiation.",

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AU - Al-Harthi, S. H.

AU - Karaa, A.

AU - Hysen, T.

AU - Elzain, M.

AU - Al-Hinai, A. T.

AU - Myint, M. T.Z.

PY - 2012/11/19

Y1 - 2012/11/19

N2 - We report on co-existing dual anisotropy ripple formation, sp bonding transformation, and variation in the delocalized π electron system in 1 keV Ar+ ion irradiated few-layer graphene surfaces. Ripples in directions, perpendicular and parallel to the ion beam were found. The irradiation effect and the transition from the sp2-bonding to sp 3-hybridized state were analyzed from the deconvolution of the C (1s) peak and from the shape of the derivative of the Auger transition spectra. The results suggest a plausible mechanism for tailoring of few-layer graphene electronic band structure with interlayer coupling tuned by the ion irradiation.

AB - We report on co-existing dual anisotropy ripple formation, sp bonding transformation, and variation in the delocalized π electron system in 1 keV Ar+ ion irradiated few-layer graphene surfaces. Ripples in directions, perpendicular and parallel to the ion beam were found. The irradiation effect and the transition from the sp2-bonding to sp 3-hybridized state were analyzed from the deconvolution of the C (1s) peak and from the shape of the derivative of the Auger transition spectra. The results suggest a plausible mechanism for tailoring of few-layer graphene electronic band structure with interlayer coupling tuned by the ion irradiation.

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Evolution of surface morphology and electronic structure of few layer graphene after low energy Ar ion irradiation

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