Universität zu Köln

Huttmann, Felix, Martinez-Galera, Antonio J., Caciuc, Vasile ORCID: 0000-0002-4814-2417, Atodiresei, Nicolae ORCID: 0000-0002-8203-1227, Schumacher, Stefan, Standop, Sebastian, Hamada, Ikutaro ORCID: 0000-0001-5112-2452, Wehling, Tim O., Bluegel, Stefan and Michely, Thomas (2015). Tuning the van der Waals Interaction of Graphene with Molecules via Doping. Phys. Rev. Lett., 115 (23). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

We use scanning tunneling microscopy to visualize and thermal desorption spectroscopy to quantitatively measure that the binding of naphthalene molecules to graphene, a case of pure van der Waals interaction, strengthens with n and weakens with p doping of graphene. Density-functional theory calculations that include the van der Waals interaction in a seamless, ab initio way accurately reproduce the observed trend in binding energies. Based on a model calculation, we propose that the van der Waals interaction is modified by changing the spatial extent of graphene's pi orbitals via doping.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Huttmann, Felix UNSPECIFIED UNSPECIFIED UNSPECIFIED Martinez-Galera, Antonio J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Caciuc, Vasile UNSPECIFIED orcid.org/0000-0002-4814-2417 UNSPECIFIED Atodiresei, Nicolae UNSPECIFIED orcid.org/0000-0002-8203-1227 UNSPECIFIED Schumacher, Stefan UNSPECIFIED UNSPECIFIED UNSPECIFIED Standop, Sebastian UNSPECIFIED UNSPECIFIED UNSPECIFIED Hamada, Ikutaro UNSPECIFIED orcid.org/0000-0001-5112-2452 UNSPECIFIED Wehling, Tim O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bluegel, Stefan UNSPECIFIED UNSPECIFIED UNSPECIFIED Michely, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-385285
DOI:	10.1103/PhysRevLett.115.236101
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	115
Number:	23
Date:	2015
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ENERGY Multiple languages Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/38528