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Nanoscale imaging of electric pathways in epitaxial graphene nanoribbons

Aprojanz, Johannes ; Bampoulis, Pantelis ; Zakharov, Alexei A. LU ; Zandvliet, Harold J.W. and Tegenkamp, Christoph (2019) In Nano Research 12(7). p.1697-1702
Abstract

Graphene nanoribbons (GNRs) are considered as major building blocks in future carbon-based electronics. The electronic performance of graphene nanostructures is essentially influenced and determined by their edge termination and their supporting substrate. In particular, semi-conducting, as well as metallic GNRs, can be fabricated by choosing the proper template which is favorable for device architecture designs. This study highlights the impact of microscopic details of the environment of the GNRs on the charge transport in GNRs. By means of lateral force, conductive atomic force and nanoprobe measurements, we explore the charge propagation in both zig-zag and armchair GNRs epitaxially grown on SiC templates. We directly image... (More)

Graphene nanoribbons (GNRs) are considered as major building blocks in future carbon-based electronics. The electronic performance of graphene nanostructures is essentially influenced and determined by their edge termination and their supporting substrate. In particular, semi-conducting, as well as metallic GNRs, can be fabricated by choosing the proper template which is favorable for device architecture designs. This study highlights the impact of microscopic details of the environment of the GNRs on the charge transport in GNRs. By means of lateral force, conductive atomic force and nanoprobe measurements, we explore the charge propagation in both zig-zag and armchair GNRs epitaxially grown on SiC templates. We directly image transport channels on the nanoscale and identify SiC substrate steps and nano-instabilities of SiC facets as dominant charge scattering centers. [Figure not available: see fulltext.].

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
conductive-AFM, nanoprobe, nanoscale transport, sidewall graphene nanoribbons
in
Nano Research
volume
12
issue
7
pages
1697 - 1702
publisher
Springer
external identifiers
  • scopus:85065677130
ISSN
1998-0124
DOI
10.1007/s12274-019-2425-5
language
English
LU publication?
yes
id
8517ff8f-f7c8-4220-9de9-4f2cd42fe067
date added to LUP
2019-06-17 12:20:36
date last changed
2020-09-30 06:14:36
@article{8517ff8f-f7c8-4220-9de9-4f2cd42fe067,
  abstract     = {<p>Graphene nanoribbons (GNRs) are considered as major building blocks in future carbon-based electronics. The electronic performance of graphene nanostructures is essentially influenced and determined by their edge termination and their supporting substrate. In particular, semi-conducting, as well as metallic GNRs, can be fabricated by choosing the proper template which is favorable for device architecture designs. This study highlights the impact of microscopic details of the environment of the GNRs on the charge transport in GNRs. By means of lateral force, conductive atomic force and nanoprobe measurements, we explore the charge propagation in both zig-zag and armchair GNRs epitaxially grown on SiC templates. We directly image transport channels on the nanoscale and identify SiC substrate steps and nano-instabilities of SiC facets as dominant charge scattering centers. [Figure not available: see fulltext.].</p>},
  author       = {Aprojanz, Johannes and Bampoulis, Pantelis and Zakharov, Alexei A. and Zandvliet, Harold J.W. and Tegenkamp, Christoph},
  issn         = {1998-0124},
  language     = {eng},
  number       = {7},
  pages        = {1697--1702},
  publisher    = {Springer},
  series       = {Nano Research},
  title        = {Nanoscale imaging of electric pathways in epitaxial graphene nanoribbons},
  url          = {http://dx.doi.org/10.1007/s12274-019-2425-5},
  doi          = {10.1007/s12274-019-2425-5},
  volume       = {12},
  year         = {2019},
}