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arXiv · 1102.5258

The catalytic potential of high-k dielectrics for graphene formation

Andrew Scott·Arezoo Dianat·Felix Börrnert·Alicja Bachmatiuk·Shasha Zhang·Jamie H. Warner·Ewa Borowiak-Palen·Martin Knupfer·Bernd Büchner·Gianaurelio Cuniberti·Mark H. Rümmeli
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Abstract

The growth of single and multilayer graphene nano-flakes on MgO and ZrO2 at low temperatures is shown through transmission electron microscopy. The graphene nano-flakes are ubiquitously anchored at step edges on MgO (100) surfaces. Density functional theory investigations on MgO (100) indicate C2H2 decomposition and carbon adsorption at step-edges. Hence, both the experimental and theoretical data highlight the importance of step sites for graphene growth on MgO.

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Andrew Scott, Arezoo Dianat, Felix Börrnert, Alicja Bachmatiuk, Shasha Zhang, Jamie H. Warner, Ewa Borowiak-Palen, Martin Knupfer, Bernd Büchner, Gianaurelio Cuniberti, Mark H. Rümmeli. 2011-02-25. The catalytic potential of high-k dielectrics for graphene formation. https://doi.org/10.1063/1.3556639

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