Raman spectroscopy has been used extensively by carbon nanomaterials research communities in recent years because of its ability to characterize materials from molecular vibrations. The Raman spectra of carbon nanomaterials are typically characterized by three major bands: the G-band, the D-band, and the 2D-band (also referred to as the G'-band). Though simple, the spectra of these nanomaterials are rich in information about their quality and their micro-structures as revealed by the peak positions, peak shapes, and peak intensities.

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