Oxidation of monovacancies in graphene by oxygen molecules

Thaneshwor P. Kaloni, Yingchun Cheng, R. Faccio, Udo Schwingenschlögl

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We study the oxidation of monovacancies in graphene by oxygen molecules using first principles calculations. In particular, we address the local magnetic moments which develop at monovacancies and show that they remain intact when a molecule is adsorbed such that the dangling carbon bonds are not fully saturated. However, the lowest energy configuration does not maintain dangling bonds and is found to be semiconducting. Our data can explain the experimentally observed behavior of graphene under exposure to an oxygen plasma.
Original languageEnglish (US)
Pages (from-to)18284
JournalJournal of Materials Chemistry
Issue number45
StatePublished - Oct 14 2011


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