Hydrogen isotopic substitution experiments in nanostructured porous silicon

Autores
Palacios, W. D.; Koropecki, Roberto Roman; Arce, Roberto Delio; Busso, Arturo Jose
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nanostructured porous silicon is usually prepared by electrochemical anodization of monocrystalline silicon using a fluorine-rich electrolyte. As a result of this process, the silicon atoms conserve their original crystalline location, and many of the dangling bonds appearing on the surface of the nanostructure are saturated by hydrogen coming from the electrolyte. This work presents an IR study of the effects produced by partial substitution of water in the electrolytic solution by deuterium oxide. The isotopic effects on the IR spectra are analyzed for the as-prepared samples and for the samples subjected to partial thermal effusion of hydrogen and deuterium. We demonstrate that, although deuterium is chemically indistinguishable from hydrogen, it presents a singular behaviour when used in porous silicon preparation. We found that deuterium preferentially bonds forming SiDH groups. A possible explanation of the phenomenon is presented, based on the different diffusivities of hydrogen and deuterium.
Fil: Palacios, W. D.. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura; Argentina
Fil: Koropecki, Roberto Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Arce, Roberto Delio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Busso, Arturo Jose. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura; Argentina
Materia
Isotopical Substitution
Porous Silicon
Nanostructures
Infrared Spectroscopy
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:11336/25371
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/25371
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hydrogen isotopic substitution experiments in nanostructured porous siliconPalacios, W. D.Koropecki, Roberto RomanArce, Roberto DelioBusso, Arturo JoseIsotopical SubstitutionPorous SiliconNanostructuresInfrared Spectroscopyhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Nanostructured porous silicon is usually prepared by electrochemical anodization of monocrystalline silicon using a fluorine-rich electrolyte. As a result of this process, the silicon atoms conserve their original crystalline location, and many of the dangling bonds appearing on the surface of the nanostructure are saturated by hydrogen coming from the electrolyte. This work presents an IR study of the effects produced by partial substitution of water in the electrolytic solution by deuterium oxide. The isotopic effects on the IR spectra are analyzed for the as-prepared samples and for the samples subjected to partial thermal effusion of hydrogen and deuterium. We demonstrate that, although deuterium is chemically indistinguishable from hydrogen, it presents a singular behaviour when used in porous silicon preparation. We found that deuterium preferentially bonds forming SiDH groups. A possible explanation of the phenomenon is presented, based on the different diffusivities of hydrogen and deuterium.Fil: Palacios, W. D.. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura; ArgentinaFil: Koropecki, Roberto Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Arce, Roberto Delio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Busso, Arturo Jose. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura; ArgentinaElsevier Science Sa2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25371Palacios, W. D.; Koropecki, Roberto Roman; Arce, Roberto Delio; Busso, Arturo Jose; Hydrogen isotopic substitution experiments in nanostructured porous silicon; Elsevier Science Sa; Thin Solid Films; 516; 12; 12-2008; 3729-37340040-6090CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040609007009030info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tsf.2007.06.024info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:41Zoai:ri.conicet.gov.ar:11336/25371instacron: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:34982025-09-29 10:39:41.939CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydrogen isotopic substitution experiments in nanostructured porous silicon
title Hydrogen isotopic substitution experiments in nanostructured porous silicon
spellingShingle Hydrogen isotopic substitution experiments in nanostructured porous silicon
Palacios, W. D.
Isotopical Substitution
Porous Silicon
Nanostructures
Infrared Spectroscopy
title_short Hydrogen isotopic substitution experiments in nanostructured porous silicon
title_full Hydrogen isotopic substitution experiments in nanostructured porous silicon
title_fullStr Hydrogen isotopic substitution experiments in nanostructured porous silicon
title_full_unstemmed Hydrogen isotopic substitution experiments in nanostructured porous silicon
title_sort Hydrogen isotopic substitution experiments in nanostructured porous silicon
dc.creator.none.fl_str_mv Palacios, W. D.
Koropecki, Roberto Roman
Arce, Roberto Delio
Busso, Arturo Jose
author Palacios, W. D.
author_facet Palacios, W. D.
Koropecki, Roberto Roman
Arce, Roberto Delio
Busso, Arturo Jose
author_role author
author2 Koropecki, Roberto Roman
Arce, Roberto Delio
Busso, Arturo Jose
author2_role author
author
author
dc.subject.none.fl_str_mv Isotopical Substitution
Porous Silicon
Nanostructures
Infrared Spectroscopy
topic Isotopical Substitution
Porous Silicon
Nanostructures
Infrared Spectroscopy
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Nanostructured porous silicon is usually prepared by electrochemical anodization of monocrystalline silicon using a fluorine-rich electrolyte. As a result of this process, the silicon atoms conserve their original crystalline location, and many of the dangling bonds appearing on the surface of the nanostructure are saturated by hydrogen coming from the electrolyte. This work presents an IR study of the effects produced by partial substitution of water in the electrolytic solution by deuterium oxide. The isotopic effects on the IR spectra are analyzed for the as-prepared samples and for the samples subjected to partial thermal effusion of hydrogen and deuterium. We demonstrate that, although deuterium is chemically indistinguishable from hydrogen, it presents a singular behaviour when used in porous silicon preparation. We found that deuterium preferentially bonds forming SiDH groups. A possible explanation of the phenomenon is presented, based on the different diffusivities of hydrogen and deuterium.
Fil: Palacios, W. D.. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura; Argentina
Fil: Koropecki, Roberto Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Arce, Roberto Delio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Busso, Arturo Jose. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura; Argentina
description Nanostructured porous silicon is usually prepared by electrochemical anodization of monocrystalline silicon using a fluorine-rich electrolyte. As a result of this process, the silicon atoms conserve their original crystalline location, and many of the dangling bonds appearing on the surface of the nanostructure are saturated by hydrogen coming from the electrolyte. This work presents an IR study of the effects produced by partial substitution of water in the electrolytic solution by deuterium oxide. The isotopic effects on the IR spectra are analyzed for the as-prepared samples and for the samples subjected to partial thermal effusion of hydrogen and deuterium. We demonstrate that, although deuterium is chemically indistinguishable from hydrogen, it presents a singular behaviour when used in porous silicon preparation. We found that deuterium preferentially bonds forming SiDH groups. A possible explanation of the phenomenon is presented, based on the different diffusivities of hydrogen and deuterium.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/25371
Palacios, W. D.; Koropecki, Roberto Roman; Arce, Roberto Delio; Busso, Arturo Jose; Hydrogen isotopic substitution experiments in nanostructured porous silicon; Elsevier Science Sa; Thin Solid Films; 516; 12; 12-2008; 3729-3734
0040-6090
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25371
identifier_str_mv Palacios, W. D.; Koropecki, Roberto Roman; Arce, Roberto Delio; Busso, Arturo Jose; Hydrogen isotopic substitution experiments in nanostructured porous silicon; Elsevier Science Sa; Thin Solid Films; 516; 12; 12-2008; 3729-3734
0040-6090
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040609007009030
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tsf.2007.06.024
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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 13.070432

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