The Origin of Raman D Band: Bonding and Antibonding Orbitals in Graphene

Abstract

In Raman spectroscopy of graphite and graphene, the D band at ∼ 1355 cm−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.

Keywords

• graphene
• edge
• Raman D band
• molecular orbitals