Dresden 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 80: Poster Session - Graphene: Adsorption, Intercalation and Doping
O 80.6: Poster
Mittwoch, 18. März 2020, 18:15–20:00, P2/EG
Hydrogen treatment of bilayer graphene — •Claus F. P. Kastorp1, Andrew M. Cassidy1, Anders L. Jørgensen2, Marta Scheffler1, Paolo Lacovic3, Silvano Lizzit3, Liv Hornekaer1, and Richard Balog1 — 1Dept. of Physics and Astronomy, Aarhus University, Aarhus, Denmark — 2The Mads Clausen Institute, SDU NanoSYD, Sønderborg, Denmark — 3Elettra Sincrotrone Trieste, Basovizza, Italy
In single layer graphene on Ir(111), hydrogenation causes a tunable band gap, [1]. Starting with bilayer graphene on Ir(111), one may produce diamane, a 2D equivalent of diamond [2], with the same approach.
I will present the results of STM and XPS measurements of MBE grown bilayer graphene on Ir(111) exposed to either excited H2 molecules or hot atomic hydrogen under different conditions.
The processes leading to different hydrogenated structures will be investigated and explained.
[1] Balog, et al. Nature materials 9.4 (2010): 315.
[2] Leenaerts, et.al., Phys. Rev. B, 80.24 (2009): 245422.