Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications

Autores
Dasari, Radhika; Ibañez, Francisco Javier; Zamborini, Francis P.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A simple electrochemical approach was used for fabricating electrode/metal nanowire/(molecule or polymer)/electrode junctions for sensing or molecular electronics applications.The procedure for fabricating these molecule-based devices involves electropolymerization of phenol or chemisorption of alkanethiols on one set of electrodes (E1) and electrodeposition of Ag metal nano/microwires on a second electrode (E2) which is ∼5 μm away from E1. Under appropriate deposition conditions, Ag nanowires grow from E2 and cross over to E1, forming a E1/(molecule or polymer)/Ag nanowire (NW)/E2 junction. The junction resistance was controlled by (1) electrodepositing polyphenol of varied densities on E1 and (2) assembling alkanethiols of different chain lengths on E1. Ag NWs at high resistance E1/polyphenol/Ag NW/E2 junctions functionalized with Pd monolayer protected clusters (MPCs) responded fast and reversibly to H2 concentrations as low as 0.11% in a nitrogen carrier gas by a resistance decrease, likely due to volume expansion of the Pd nanoparticles, demonstrating the use of these electrochemically fabricated junctions for gas sensing applications.
Fil: Dasari, Radhika. University of Louisville; Estados Unidos
Fil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Zamborini, Francis P.. University of Louisville; Estados Unidos
Materia
ELECTROCHEMISTRY
SENSING
NANOPARTICLES
MOLECULAR JUNCTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/278620
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/278620
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing ApplicationsDasari, RadhikaIbañez, Francisco JavierZamborini, Francis P.ELECTROCHEMISTRYSENSINGNANOPARTICLESMOLECULAR JUNCTIONhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2A simple electrochemical approach was used for fabricating electrode/metal nanowire/(molecule or polymer)/electrode junctions for sensing or molecular electronics applications.The procedure for fabricating these molecule-based devices involves electropolymerization of phenol or chemisorption of alkanethiols on one set of electrodes (E1) and electrodeposition of Ag metal nano/microwires on a second electrode (E2) which is ∼5 μm away from E1. Under appropriate deposition conditions, Ag nanowires grow from E2 and cross over to E1, forming a E1/(molecule or polymer)/Ag nanowire (NW)/E2 junction. The junction resistance was controlled by (1) electrodepositing polyphenol of varied densities on E1 and (2) assembling alkanethiols of different chain lengths on E1. Ag NWs at high resistance E1/polyphenol/Ag NW/E2 junctions functionalized with Pd monolayer protected clusters (MPCs) responded fast and reversibly to H2 concentrations as low as 0.11% in a nitrogen carrier gas by a resistance decrease, likely due to volume expansion of the Pd nanoparticles, demonstrating the use of these electrochemically fabricated junctions for gas sensing applications.Fil: Dasari, Radhika. University of Louisville; Estados UnidosFil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Zamborini, Francis P.. University of Louisville; Estados UnidosAmerican Chemical Society2011-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/278620Dasari, Radhika; Ibañez, Francisco Javier; Zamborini, Francis P.; Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications; American Chemical Society; Langmuir; 27; 11; 11-2011; 7285-72930743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la103559pinfo:eu-repo/semantics/altIdentifier/doi/10.1021/la103559pinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-01-14T11:46:53Zoai:ri.conicet.gov.ar:11336/278620instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-01-14 11:46:54.225CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
title Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
spellingShingle Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
Dasari, Radhika
ELECTROCHEMISTRY
SENSING
NANOPARTICLES
MOLECULAR JUNCTION
title_short Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
title_full Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
title_fullStr Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
title_full_unstemmed Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
title_sort Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications
dc.creator.none.fl_str_mv Dasari, Radhika
Ibañez, Francisco Javier
Zamborini, Francis P.
author Dasari, Radhika
author_facet Dasari, Radhika
Ibañez, Francisco Javier
Zamborini, Francis P.
author_role author
author2 Ibañez, Francisco Javier
Zamborini, Francis P.
author2_role author
author
dc.subject.none.fl_str_mv ELECTROCHEMISTRY
SENSING
NANOPARTICLES
MOLECULAR JUNCTION
topic ELECTROCHEMISTRY
SENSING
NANOPARTICLES
MOLECULAR JUNCTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A simple electrochemical approach was used for fabricating electrode/metal nanowire/(molecule or polymer)/electrode junctions for sensing or molecular electronics applications.The procedure for fabricating these molecule-based devices involves electropolymerization of phenol or chemisorption of alkanethiols on one set of electrodes (E1) and electrodeposition of Ag metal nano/microwires on a second electrode (E2) which is ∼5 μm away from E1. Under appropriate deposition conditions, Ag nanowires grow from E2 and cross over to E1, forming a E1/(molecule or polymer)/Ag nanowire (NW)/E2 junction. The junction resistance was controlled by (1) electrodepositing polyphenol of varied densities on E1 and (2) assembling alkanethiols of different chain lengths on E1. Ag NWs at high resistance E1/polyphenol/Ag NW/E2 junctions functionalized with Pd monolayer protected clusters (MPCs) responded fast and reversibly to H2 concentrations as low as 0.11% in a nitrogen carrier gas by a resistance decrease, likely due to volume expansion of the Pd nanoparticles, demonstrating the use of these electrochemically fabricated junctions for gas sensing applications.
Fil: Dasari, Radhika. University of Louisville; Estados Unidos
Fil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Zamborini, Francis P.. University of Louisville; Estados Unidos
description A simple electrochemical approach was used for fabricating electrode/metal nanowire/(molecule or polymer)/electrode junctions for sensing or molecular electronics applications.The procedure for fabricating these molecule-based devices involves electropolymerization of phenol or chemisorption of alkanethiols on one set of electrodes (E1) and electrodeposition of Ag metal nano/microwires on a second electrode (E2) which is ∼5 μm away from E1. Under appropriate deposition conditions, Ag nanowires grow from E2 and cross over to E1, forming a E1/(molecule or polymer)/Ag nanowire (NW)/E2 junction. The junction resistance was controlled by (1) electrodepositing polyphenol of varied densities on E1 and (2) assembling alkanethiols of different chain lengths on E1. Ag NWs at high resistance E1/polyphenol/Ag NW/E2 junctions functionalized with Pd monolayer protected clusters (MPCs) responded fast and reversibly to H2 concentrations as low as 0.11% in a nitrogen carrier gas by a resistance decrease, likely due to volume expansion of the Pd nanoparticles, demonstrating the use of these electrochemically fabricated junctions for gas sensing applications.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/278620
Dasari, Radhika; Ibañez, Francisco Javier; Zamborini, Francis P.; Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications; American Chemical Society; Langmuir; 27; 11; 11-2011; 7285-7293
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/278620
identifier_str_mv Dasari, Radhika; Ibañez, Francisco Javier; Zamborini, Francis P.; Electrochemical Fabrication of Metal/Organic/Metal Junctions for Molecular Electronics and Sensing Applications; American Chemical Society; Langmuir; 27; 11; 11-2011; 7285-7293
0743-7463
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la103559p
info:eu-repo/semantics/altIdentifier/doi/10.1021/la103559p
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.113929

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