Raman spectra of twisted CVD bilayer graphene

The Raman spectra of large-size, single-crystal, twisted bilayer graphene (tBLG) grains grown by chemical vapor deposition (CVD) are measured as a function of the rotation angle. The rotation angle between the graphene layers is determined using a combination of transmission electron microscopy (TEM...

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Bibliographic Details
Published in:Carbon (New York) 2017-10, Vol.123, p.302-306
Main Authors: Ramnani, Pankaj, Neupane, Mahesh R., Ge, Supeng, Balandin, Alexander A., Lake, Roger K., Mulchandani, Ashok
Format: Article
Language:English
Subjects:
Bilayers
Carbon
Chemical vapor deposition
Computer simulation
Electron diffraction
Electron microscopy
Graphene
Mathematical analysis
Molecular dynamics
Numerical analysis
Raman spectra
Single crystals
Studies
Transmission electron microscopy
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Summary:The Raman spectra of large-size, single-crystal, twisted bilayer graphene (tBLG) grains grown by chemical vapor deposition (CVD) are measured as a function of the rotation angle. The rotation angle between the graphene layers is determined using a combination of transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The 2D and G peaks follow the same trends as found previously. The low-frequency peaks (
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2017.07.064