Regensburg 2016 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 44: Graphene: Electronic Properties, Structure and Substrate Interaction

O 44.5: Poster

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

Graphene formation on Ag(001) by liquid precursor deposition — •Jens Uwe Neurohr, Samuel Grandthyll, Karin Jacobs, and Frank Müller — Saarland University, 66041 Saarbruecken, Germany

Chemical vapor deposition (CVD) is the standard method for epitaxial growth of graphene on many transition metal surfaces, but for a very weakly interacting substrate such as Ag(001) the CVD-process fails. However, epitaxial graphene on Ag(001) can be obtained by liquid precursor deposition (LPD) - an alternative synthesis route that was successfully demonstrated on many transition metals in previous studies [1]. Graphene growth on Ag(001) was investigated by X-ray photoelectron spectroscopy (XPS), low energy electron diffraction (LEED), and Fermi surface mapping (FSM), revealing a monolayer coverage of arbitrarily rotated domains [2], similarly to the growth of boronitrene (i.e., h-BN monolayers) on the Ag(001) [3].

References:
[1] S. Grandthyll, S. Gsell, M. Weinl, M. Schreck, S. Hüfner and F. Müller J. Phys. : Condens. Matter 24 (2012) 314204
[2] S. Grandthyll, K. Jacobs and F. Müller Phys. Status Solidi B, 252: 1695-1699
[3] F. Müller, S. Grandthyll Surface Science 617 (2013) 207-210