Raman and optical characterization of multilayer turbostratic graphene grown via chemical vapor deposition - Condensed Matter > Materials ScienceReportar como inadecuado




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Abstract: We synthesize large-area graphene via atmospheric-pressure AP chemicalvapor deposition CVD on copper, and transfer to SiO2 wafers. In contrast tolow-pressure LP CVD on copper, optical contrast and atomic force microscopymeasurements show AP-CVD graphene contains significant multi-layer areas. Ramanspectroscopy always shows a single Lorentzian 2D peak, however systematicdifferences are observed in the 2D peak energy, width, and intensity forsingle- and multi-layer regions. We conclude that graphene multi-layers grownby AP-CVD on Cu are rotationally disordered.



Autor: Daniel R. Lenski, Michael S. Fuhrer

Fuente: https://arxiv.org/







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