Raman Spectrum of Graphene and Graphene Layers
Andrea Carlo Ferrari, Jannik C. Meyer, Vittorio Scardaci, Cinzia Casiraghi, Michele Lazzeri, Francesco Mauri, Stefano Piscanec, Da Jiang, Kostya S. Novoselov, S. Roth, Andre K. Geim
Physical Review Letters · 2006 · 15,133 citationsOpen access
Abstract
Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. We show that its electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers. The D peak second order changes in shape, width, and position for an increasing number of layers, reflecting the change in the electron bands via a double resonant Raman process. The G peak slightly down-shifts. This allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area.
Cite this paper
Ferrari, A. C., Meyer, J. C., Scardaci, V., Casiraghi, C., Lazzeri, M., Mauri, F., Piscanec, S., Jiang, D., Novoselov, K. S., Roth, S., & Geim, A. K. (2006). Raman spectrum of graphene and graphene layers. Physical Review Letters, 97(18), 187401. https://doi.org/10.1103/physrevlett.97.187401
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