Raman 2D-band splitting in graphene: Theory and experiment

Otakar Frank; Marcel Mohr; Janina Maultzsch; Christian Thomsen; Ibtsam Riaz; Rashid Jalil; Kostya S. Novoselov; Georgia Tsoukleri; John Parthenios; Konstantinos Papagelis; Ladislav Kavan; Costas Galiotis

doi:10.1021/nn103493g

Raman 2D-band splitting in graphene: Theory and experiment

Otakar Frank, Marcel Mohr, Janina Maultzsch, Christian Thomsen, Ibtsam Riaz, Rashid Jalil, Kostya S. Novoselov, Georgia Tsoukleri, John Parthenios, Konstantinos Papagelis, Ladislav Kavan, Costas Galiotis

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

Abstract

We present a systematic experimental and theoretical study of the two-phonon (2D) Raman scattering in graphene under uniaxial tension. The external perturbation unveils that the 2D mode excited with 785 nm has a complex line-shape mainly due to the contribution of two distinct double resonance scattering processes (inner and outer) in the Raman signal. The splitting depends on the direction of the applied strain and the polarization of the incident light. The results give new insight into the nature of the 2D band and have significant implications for the use of graphene as reinforcement in composites since the 2D mode is crucial to assess how effectively graphene uptakes an applied stress or strain. © 2011 American Chemical Society.

Original language	English
Pages (from-to)	2231-2239
Number of pages	8
Journal	ACS Nano
Volume	5
Issue number	3
DOIs	https://doi.org/10.1021/nn103493g
Publication status	Published - 22 Mar 2011

Keywords

2D mode
graphene
Raman spectroscopy
tensile strain

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10.1021/nn103493g

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title = "Raman 2D-band splitting in graphene: Theory and experiment",

abstract = "We present a systematic experimental and theoretical study of the two-phonon (2D) Raman scattering in graphene under uniaxial tension. The external perturbation unveils that the 2D mode excited with 785 nm has a complex line-shape mainly due to the contribution of two distinct double resonance scattering processes (inner and outer) in the Raman signal. The splitting depends on the direction of the applied strain and the polarization of the incident light. The results give new insight into the nature of the 2D band and have significant implications for the use of graphene as reinforcement in composites since the 2D mode is crucial to assess how effectively graphene uptakes an applied stress or strain. {\textcopyright} 2011 American Chemical Society.",

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T1 - Raman 2D-band splitting in graphene: Theory and experiment

AU - Frank, Otakar

AU - Mohr, Marcel

AU - Maultzsch, Janina

AU - Thomsen, Christian

AU - Riaz, Ibtsam

AU - Jalil, Rashid

AU - Novoselov, Kostya S.

AU - Tsoukleri, Georgia

AU - Parthenios, John

AU - Papagelis, Konstantinos

AU - Kavan, Ladislav

AU - Galiotis, Costas

N1 - 737LP Times Cited:34 Cited References Count:44

PY - 2011/3/22

Y1 - 2011/3/22

N2 - We present a systematic experimental and theoretical study of the two-phonon (2D) Raman scattering in graphene under uniaxial tension. The external perturbation unveils that the 2D mode excited with 785 nm has a complex line-shape mainly due to the contribution of two distinct double resonance scattering processes (inner and outer) in the Raman signal. The splitting depends on the direction of the applied strain and the polarization of the incident light. The results give new insight into the nature of the 2D band and have significant implications for the use of graphene as reinforcement in composites since the 2D mode is crucial to assess how effectively graphene uptakes an applied stress or strain. © 2011 American Chemical Society.

AB - We present a systematic experimental and theoretical study of the two-phonon (2D) Raman scattering in graphene under uniaxial tension. The external perturbation unveils that the 2D mode excited with 785 nm has a complex line-shape mainly due to the contribution of two distinct double resonance scattering processes (inner and outer) in the Raman signal. The splitting depends on the direction of the applied strain and the polarization of the incident light. The results give new insight into the nature of the 2D band and have significant implications for the use of graphene as reinforcement in composites since the 2D mode is crucial to assess how effectively graphene uptakes an applied stress or strain. © 2011 American Chemical Society.

KW - 2D mode

KW - graphene

KW - Raman spectroscopy

KW - tensile strain

U2 - 10.1021/nn103493g

DO - 10.1021/nn103493g

M3 - Article

SN - 1936-0851

VL - 5

SP - 2231

EP - 2239

JO - ACS Nano

JF - ACS Nano

IS - 3

ER -

Raman 2D-band splitting in graphene: Theory and experiment

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Keywords

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