期刊
JOURNAL OF APPLIED PHYSICS
卷 110, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3605545
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资金
- Laboratory for Physical Sciences
- Center for Science of Precision Multifunctional Nanostructures for Electrical Energy Storage (U.S. DOE, Office of Basic Energy Sciences) [DESC0001160]
We synthesize large-area graphene via atmospheic-pressure (AP) chemical vapor deposition (CVD) on copper, and transfer to SiO(2) wafers. In contrast to low-pressure CVD on copper, optical contrast and atomic force microscopy measurements show AP-CVD graphene contains significant multi-layer areas. Raman spectroscopy always shows a single Lorentzian 2D peak, however systematic differences are observed in the 2D peak energy, width, and intensity for single-and multi-layer regions. We conclude that graphene multi-layers grown by AP-CVD on Cu are rotationally disordered. (C) 2011 American Institute of Physics. [doi:10.1063/1.3605545]
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