Molecular and electronic structure of PTCDA on bilayer graphene on SiC(0001) studied with scanning tunneling microscopy

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Lauffer P, Emtsev K, Graupner R, Seyller T, Ley L
Zeitschrift: physica status solidi (b)
Jahr der Veröffentlichung: 2008
Band: 245
Heftnummer: 10
Seitenbereich: 2064-2067
ISSN: 0370-1972
eISSN: 1521-3951


Abstract

Epitaxial growth of graphene on SiC surfaces by solid state graphitization is a promising route for future development of graphene based electronics. In the present work we study the morphology and molecular scale structure of monolayer films of 3,4,9,10-perylene tetracarboxylic dianhydrid (PTCDA) on bilayer graphene on SiC(0001) by scanning tunneling microscopy (STM). First we discuss how the PTCDA molecules adsorb on bilayer graphene. We specially regard the density of PTCDA molecules at monolayer coverage. From the comparison with experiments on HOPG (Au(111) and Ag(110) from literature) we infer a non-planar adsorption geometry of PTCDA molecules on bilayer graphene. The electronic structure of the surrounding bilayer graphene substrate is investigated via scanning tunneling spectroscopy (STS) and reveals n-type doping of bilayer graphene during adsorption of PTCDA. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Graupner, Ralf PD Dr.
Naturwissenschaftliche Fakultät
Ley, Lothar Prof. Dr.
Naturwissenschaftliche Fakultät
Seyller, Thomas PD Dr.
Lehrstuhl für Laserphysik


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Forschungsbereiche

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Lauffer, P., Emtsev, K., Graupner, R., Seyller, T., & Ley, L. (2008). Molecular and electronic structure of PTCDA on bilayer graphene on SiC(0001) studied with scanning tunneling microscopy. physica status solidi (b), 245(10), 2064-2067. https://dx.doi.org/10.1002/pssb.200879615

MLA:
Lauffer, Peter, et al. "Molecular and electronic structure of PTCDA on bilayer graphene on SiC(0001) studied with scanning tunneling microscopy." physica status solidi (b) 245.10 (2008): 2064-2067.

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