The origin of Raman D Band: Bonding and Antibonding Orbitals in Graphene
Abstract
In Raman spectroscopy of graphite and graphene, the D band at 1355cm-1 is used as the indication of the dirtiness of a sample. However, our analysis suggests that the physics behind the D band is closely related to a very clear idea for describing a molecule, namely bonding and antibonding orbitals in graphene. In this paper, we review our recent work on the mechanism for activating the D band at a graphene edge.
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