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O: Fachverband Oberflächenphysik

O 45: Graphene: Adsorption, Intercalation and Doping

O 45.9: Poster

Dienstag, 8. März 2016, 18:15–20:30, Poster E

Long range structure of oxygen and hydrogen adsorbed graphene — •Jan Gesenhues and Michael Rohlfing — WWU Münster

Adsorbtion of atomic oxygen and hydrogen on planar graphene is theoretically studied within a DFT-LDA framework. Changes in the spatial as well as electronic structure are studied in comparison to pristine graphene. In particular large supercells are considered to determine the long range effects of the respective adsorption. Our results show that the atomic adsorption mediates geometric changes as far as 20   Å while electronic changes can be observed approximately within 15   Å.