A re-evaluation of how functional groups modify the electronic structure of graphene oxide

Abstract

The first 4 eV of the conduction band in graphene oxide is dominated by states from carbon sites that are in close proximity, but not directly bonded, to oxidizing functional groups. The carbon sites that are bonded directly to these groups, such as epoxide and hydroxyl groups, are much higher in energy. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.