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arXiv · 1011.1683

Raman and optical characterization of multilayer turbostratic graphene grown via chemical vapor deposition

Daniel R. Lenski·Michael S. Fuhrer
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Abstract

We synthesize large-area graphene via atmospheric-pressure (AP) chemical vapor deposition (CVD) on copper, and transfer to SiO2 wafers. In contrast to low-pressure (LP) 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.

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Daniel R. Lenski, Michael S. Fuhrer. 2011-05-25. Raman and optical characterization of multilayer turbostratic graphene grown via chemical vapor deposition. https://doi.org/10.1063/1.3605545

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