Dynamics of graphene growth on a metal surface: a time-dependent photoemission study

Autor(en)

Alexander Grüneis, Kurt Kummer, D.V. Vyalikh

Abstrakt

Applying time-dependent photoemission we unravel the graphene growth process on a metallic surface by chemical vapor deposition (CVD). Graphene CVD growth is in stark contrast to the standard growth process of two-dimensional films because it is self-limiting and stops as soon as a monolayer of graphene has been synthesized. Most importantly, a novel phase of metastable graphene was discovered that is characterized by permanent and simultaneous construction and deconstruction. The high quality and large area graphene flakes are characterized by angle-resolved photoemission, proving that they are indeed monolayer and cover the whole 1 × 1 cm Ni(111) substrate. These findings are of high relevance to the intensive search for reliable synthesis methods for large graphene flakes of controlled layer number.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Technische Universität Dresden, Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden

Journal

New Journal of Physics

Band

11

Anzahl der Seiten

9

ISSN

1367-2630

DOI

https://doi.org/10.1088/1367-2630/11/7/073050

Publikationsdatum

2009

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/0f69311c-4383-48c7-82a5-8dad6248dc58