The Raman spectra of my carbon dots shows G band and D band. In addition to that a comparatively broader band occurs at 2950 cm-1. Can anyone help you to identify the 3rd band and a plausible reason for that?
Check out the supplementary material to this publication:
Article Theory of Graphene Raman Scattering
The supplementary figure 1 explains it as a combined D+G vibration. However, also consider the existence of a strongly shifted 2D band.
Possibility of hydrogen as CH bonds?
Thank you Nicholas Edward Schlotter and Jürgen Weippert for your valuable answers
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