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Towards scalable nano-engineering of graphene

By merging bottom-up and top-down strategies we tailor graphene's electronic properties within nanometer accuracy, which opens up the possibility to design optical and plasmonic circuitries at will. In a first step, graphene electronic properties are macroscopically modified exploiting the peri...

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Autores principales: Martínez-Galera, A. J., Brihuega, I., Gutiérrez-Rubio, A., Stauber, T., Gómez-Rodríguez, J. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255185/
https://www.ncbi.nlm.nih.gov/pubmed/25472802
http://dx.doi.org/10.1038/srep07314
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author Martínez-Galera, A. J.
Brihuega, I.
Gutiérrez-Rubio, A.
Stauber, T.
Gómez-Rodríguez, J. M.
author_facet Martínez-Galera, A. J.
Brihuega, I.
Gutiérrez-Rubio, A.
Stauber, T.
Gómez-Rodríguez, J. M.
author_sort Martínez-Galera, A. J.
collection PubMed
description By merging bottom-up and top-down strategies we tailor graphene's electronic properties within nanometer accuracy, which opens up the possibility to design optical and plasmonic circuitries at will. In a first step, graphene electronic properties are macroscopically modified exploiting the periodic potential generated by the self assembly of metal cluster superlattices on a graphene/Ir(111) surface. We then demonstrate that individual metal clusters can be selectively removed by a STM tip with perfect reproducibility and that the structures so created are stable even at room temperature. This enables one to nanopattern circuits down to the 2.5 nm only limited by the periodicity of the Moiré-pattern, i.e., by the distance between neighbouring clusters, and different electronic and optical properties should prevail in the covered and uncovered regions. The method can be carried out on micro-meter-sized regions with clusters of different materials permitting to tune the strength of the periodic potential.
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spelling pubmed-42551852014-12-08 Towards scalable nano-engineering of graphene Martínez-Galera, A. J. Brihuega, I. Gutiérrez-Rubio, A. Stauber, T. Gómez-Rodríguez, J. M. Sci Rep Article By merging bottom-up and top-down strategies we tailor graphene's electronic properties within nanometer accuracy, which opens up the possibility to design optical and plasmonic circuitries at will. In a first step, graphene electronic properties are macroscopically modified exploiting the periodic potential generated by the self assembly of metal cluster superlattices on a graphene/Ir(111) surface. We then demonstrate that individual metal clusters can be selectively removed by a STM tip with perfect reproducibility and that the structures so created are stable even at room temperature. This enables one to nanopattern circuits down to the 2.5 nm only limited by the periodicity of the Moiré-pattern, i.e., by the distance between neighbouring clusters, and different electronic and optical properties should prevail in the covered and uncovered regions. The method can be carried out on micro-meter-sized regions with clusters of different materials permitting to tune the strength of the periodic potential. Nature Publishing Group 2014-12-04 /pmc/articles/PMC4255185/ /pubmed/25472802 http://dx.doi.org/10.1038/srep07314 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Martínez-Galera, A. J.
Brihuega, I.
Gutiérrez-Rubio, A.
Stauber, T.
Gómez-Rodríguez, J. M.
Towards scalable nano-engineering of graphene
title Towards scalable nano-engineering of graphene
title_full Towards scalable nano-engineering of graphene
title_fullStr Towards scalable nano-engineering of graphene
title_full_unstemmed Towards scalable nano-engineering of graphene
title_short Towards scalable nano-engineering of graphene
title_sort towards scalable nano-engineering of graphene
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255185/
https://www.ncbi.nlm.nih.gov/pubmed/25472802
http://dx.doi.org/10.1038/srep07314
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