Universität zu Köln

Gruneis, A., Senkovskiy, B. V., Fedorov, A. V., Hell, M. and Michel, S. (2018). Ultrahigh Vacuum Optical Spectroscopy of Chemically Functionalized Graphene Nanoribbons. In: Encyclopedia of Interfacial Chemistry 1st Edition Surface Science and Electrochemistry, pp. 367-374. Elsevier. ISBN 9780128097397

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Abstract

We show that Raman and photoluminescence spectroscopies carried out in an ultrahigh vacuum (UHV) environment are a quick and nondestructive tool for investigating the electronic and vibrational properties of air-sensitive materials. As a showcase of this technique, experimental results of monolayers of chemically functionalized graphene nanoribbons on Au and silicon dioxide surfaces are presented. As functionalization routes we perform ionic and covalent functionalization by alkali metals and hydrogen, respectively. Samples prepared in this way cannot be probed using a standard optical spectroscopy experiment in ambient conditions because of their sensitivity to air and the need for controlled in-situ preparation. UHV optical spectroscopy is able to give valuable information on the orientation, the doping level, the defect concentration, and the luminescent properties of functionalized graphene nanoribbons.

Item Type:	Book Section
Creators:	Creators Email ORCID ORCID Put Code Gruneis, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Senkovskiy, B. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fedorov, A. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hell, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Michel, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED
Editors:	Editors Email ORCID ORCID Put Code Klaus, Wandelt UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-81696
Identification Number:	10.1016/B978-0-12-409547-2.14168-X
Title of Book:	Encyclopedia of Interfacial Chemistry 1st Edition Surface Science and Electrochemistry
Page Range:	pp. 367-374
Number of Pages:	5560
Date:	20 April 2018
Publisher:	Elsevier
ISBN:	9780128097397
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II
Subjects:	Natural sciences and mathematics Physics
Related URLs:	['eprint_fieldopt_related_url_type_publication' not defined]
Funders:	ERC grant no. 648589 “SUPER-2D”
Projects:	DFG project INST 216/808-1 FUGG, DFG project GR 3708/2-1
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/8169