Universität zu Köln

Hell, M. G., Senkovskiy, B. V., Fedorov, A. V., Nefedov, A., Woll, C. and Gruneis, A. (2016). Facile preparation of Au(111)/MICA substrates for high-quality graphene nanoribbon synthesis. physica status solidi (b), 253 (12). pp. 2362-2365. Wiley Online Library. ISSN 1521-3951

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Abstract

A setup for the preparation of oriented Au(111)/mica thin films of ∼100 nm thickness as an active substrate for graphene nanoribbon growth is shown. Low-energy electron diffraction shows that the Au(111) thin films have a single crystallographic orientation over the whole surface area. Graphene nanoribbons are synthesized by the bottom-up approach via surface polymerization of precursor molecules that are evaporated onto the catalytically active Au(111)/mica substrate. The graphene nanoribbons are investigated by a combination of resonance Raman, X-ray photoemission spectroscopy, and near-edge X-ray absorption fine structure spectroscopy confirming a nanoribbon quality equal to nanoribbons grown on commercially available single-crystal Au(111) substrates. The present work, therefore, establishes the insitu preparation of Au(111)/mica as an inexpensive and simple method to prepare substrates of desired shape and thickness for surface polymerization reactions which are of interest to a growing community of researchers working on graphene nanoribbons.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hell, M. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Senkovskiy, B. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fedorov, A. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nefedov, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Woll, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gruneis, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-81492
DOI:	10.1002/pssb.201600254
Journal or Publication Title:	physica status solidi (b)
Volume:	253
Number:	12
Page Range:	pp. 2362-2365
Date:	9 December 2016
Publisher:	Wiley Online Library
ISSN:	1521-3951
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
Funders:	ERC grant no. 648589 “SUPER-2D”, DFG project GR 3708/2-1
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/8149