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Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments

We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors. An electrochemical fabrication procedure to etch the tips is used to yield reproducible sub-100-nm apex. We also study electron t...

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Detalles Bibliográficos
Autores principales: Rubio-Bollinger, Gabino, Castellanos-Gomez, Andres, Bilan, Stefan, Zotti, Linda A, Arroyo, Carlos R, Agraït, Nicolás, Cuevas, Juan Carlos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3431272/
https://www.ncbi.nlm.nih.gov/pubmed/22587692
http://dx.doi.org/10.1186/1556-276X-7-254
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author Rubio-Bollinger, Gabino
Castellanos-Gomez, Andres
Bilan, Stefan
Zotti, Linda A
Arroyo, Carlos R
Agraït, Nicolás
Cuevas, Juan Carlos
author_facet Rubio-Bollinger, Gabino
Castellanos-Gomez, Andres
Bilan, Stefan
Zotti, Linda A
Arroyo, Carlos R
Agraït, Nicolás
Cuevas, Juan Carlos
author_sort Rubio-Bollinger, Gabino
collection PubMed
description We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors. An electrochemical fabrication procedure to etch the tips is used to yield reproducible sub-100-nm apex. We also study electron transport through single-molecule junctions formed by a single octanethiol molecule bonded by the thiol anchoring group to a gold electrode and linked to a carbon tip by the methyl group. We observe the presence of conductance plateaus during the stretching of the molecular bridge, which is the signature of the formation of a molecular junction.
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spelling pubmed-34312722012-08-31 Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments Rubio-Bollinger, Gabino Castellanos-Gomez, Andres Bilan, Stefan Zotti, Linda A Arroyo, Carlos R Agraït, Nicolás Cuevas, Juan Carlos Nanoscale Res Lett Nano Express We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors. An electrochemical fabrication procedure to etch the tips is used to yield reproducible sub-100-nm apex. We also study electron transport through single-molecule junctions formed by a single octanethiol molecule bonded by the thiol anchoring group to a gold electrode and linked to a carbon tip by the methyl group. We observe the presence of conductance plateaus during the stretching of the molecular bridge, which is the signature of the formation of a molecular junction. Springer 2012-05-15 /pmc/articles/PMC3431272/ /pubmed/22587692 http://dx.doi.org/10.1186/1556-276X-7-254 Text en Copyright ©2012 Rubio-Bollinger et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Rubio-Bollinger, Gabino
Castellanos-Gomez, Andres
Bilan, Stefan
Zotti, Linda A
Arroyo, Carlos R
Agraït, Nicolás
Cuevas, Juan Carlos
Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
title Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
title_full Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
title_fullStr Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
title_full_unstemmed Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
title_short Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
title_sort carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3431272/
https://www.ncbi.nlm.nih.gov/pubmed/22587692
http://dx.doi.org/10.1186/1556-276X-7-254
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