Raman 2D-Band Splitting in Graphene: Theory and Experiment

被引：287

作者：

Frank, Otakar ^{[1
,2
]}

Mohr, Marcel ^{[3
]}

Maultzsch, Janina ^{[3
]}

Thomsen, Christian ^{[3
]}

Riaz, Ibtsam ^{[4
]}

Jalil, Rashid ^{[4
]}

Novoselov, Kostya S. ^{[4
]}

Tsoukleri, Georgia ^{[1
]}

Parthenios, John ^{[1
]}

Papagelis, Konstantinos ^{[1
,5
]}

Kavan, Ladislav ^{[2
]}

Galiotis, Costas ^{[1
,5
]}

机构：

[1] Fdn Res & Technol Hellas FORTH ICE HT, Inst Chem Engn & High Temp Chem Proc, Patras 26504, Greece

[2] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, Vvi, CR-18223 Prague 8, Czech Republic

[3] Tech Univ Berlin, Inst Festkorperphys, D-10623 Berlin, Germany

[4] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[5] Univ Patras, Dept Mat Sci, Patras 26504, Greece

来源：

ACS NANO | 2011年 / 5卷 / 03期

基金：

欧洲研究理事会;

关键词：

graphene; Raman spectroscopy; tensile strain; 2D mode; STRESS TRANSFER; CARBON-FIBERS; STRAIN; SPECTROSCOPY; MONOLAYER; GRAPHITE; BEHAVIOR;

D O I：

10.1021/nn103493g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a systematic experimental and theoretical study of the two phonon (2D) Raman scattering in graphene undar 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

引用

页码：2231 / 2239

页数：9

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