Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon

Autores
Koropecki, Roberto Roman; Arce, Roberto Delio; Schmidt, Javier Alejandro
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nanostructured porous silicon samples prepared by electrochemical anodization of p-type crystalline silicon were exposed to blue light irradiation (k ¼ 400 nm) in air atmosphere. We observed that both photoluminescence and IR spectra evolve during irradiation. We have monitored the evolution of the IR spectra and we have performed effusion experiments to study the photo-oxidation kinetics. Bands located at around 1100 and 900 cm-1 attributed to Si–O related modes are observed to grow with the illumination time, whereas a mode at 910 cm-1 assigned to SiH2 scissoring vibration decreases. The existence of an isosbestic point and the results from factor analysis reveal the presence of only two species evolving in a correlated way. The hydrogen effusion experiments corroborate that the photo-oxidation takes place in a preferential manner, at the expense of hydrogen bonded as dihydride.
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. Universidad Nacional del Litoral. Facultad de Ingeniería 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: Schmidt, Javier Alejandro. 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. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Materia
Porous Silicon
Hydrogen Effusion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/26825
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Infrared studies combined with hydrogen effusion experiments on nanostructured porous siliconKoropecki, Roberto RomanArce, Roberto DelioSchmidt, Javier AlejandroPorous SiliconHydrogen Effusionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Nanostructured porous silicon samples prepared by electrochemical anodization of p-type crystalline silicon were exposed to blue light irradiation (k ¼ 400 nm) in air atmosphere. We observed that both photoluminescence and IR spectra evolve during irradiation. We have monitored the evolution of the IR spectra and we have performed effusion experiments to study the photo-oxidation kinetics. Bands located at around 1100 and 900 cm-1 attributed to Si–O related modes are observed to grow with the illumination time, whereas a mode at 910 cm-1 assigned to SiH2 scissoring vibration decreases. The existence of an isosbestic point and the results from factor analysis reveal the presence of only two species evolving in a correlated way. The hydrogen effusion experiments corroborate that the photo-oxidation takes place in a preferential manner, at the expense of hydrogen bonded as dihydride.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. Universidad Nacional del Litoral. Facultad de Ingeniería 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: Schmidt, Javier Alejandro. 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. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaElsevier Science2004-03info: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/11336/26825Koropecki, Roberto Roman; Arce, Roberto Delio; Schmidt, Javier Alejandro; Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon; Elsevier Science; Journal of Non-crystalline Solids; 338; 3-2004; 159-1620022-3093CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2004.02.044info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309304001048info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:10:13Zoai:ri.conicet.gov.ar:11336/26825instacron: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:34982025-09-10 13:10:13.422CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
title Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
spellingShingle Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
Koropecki, Roberto Roman
Porous Silicon
Hydrogen Effusion
title_short Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
title_full Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
title_fullStr Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
title_full_unstemmed Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
title_sort Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon
dc.creator.none.fl_str_mv Koropecki, Roberto Roman
Arce, Roberto Delio
Schmidt, Javier Alejandro
author Koropecki, Roberto Roman
author_facet Koropecki, Roberto Roman
Arce, Roberto Delio
Schmidt, Javier Alejandro
author_role author
author2 Arce, Roberto Delio
Schmidt, Javier Alejandro
author2_role author
author
dc.subject.none.fl_str_mv Porous Silicon
Hydrogen Effusion
topic Porous Silicon
Hydrogen Effusion
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nanostructured porous silicon samples prepared by electrochemical anodization of p-type crystalline silicon were exposed to blue light irradiation (k ¼ 400 nm) in air atmosphere. We observed that both photoluminescence and IR spectra evolve during irradiation. We have monitored the evolution of the IR spectra and we have performed effusion experiments to study the photo-oxidation kinetics. Bands located at around 1100 and 900 cm-1 attributed to Si–O related modes are observed to grow with the illumination time, whereas a mode at 910 cm-1 assigned to SiH2 scissoring vibration decreases. The existence of an isosbestic point and the results from factor analysis reveal the presence of only two species evolving in a correlated way. The hydrogen effusion experiments corroborate that the photo-oxidation takes place in a preferential manner, at the expense of hydrogen bonded as dihydride.
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. Universidad Nacional del Litoral. Facultad de Ingeniería 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: Schmidt, Javier Alejandro. 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. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
description Nanostructured porous silicon samples prepared by electrochemical anodization of p-type crystalline silicon were exposed to blue light irradiation (k ¼ 400 nm) in air atmosphere. We observed that both photoluminescence and IR spectra evolve during irradiation. We have monitored the evolution of the IR spectra and we have performed effusion experiments to study the photo-oxidation kinetics. Bands located at around 1100 and 900 cm-1 attributed to Si–O related modes are observed to grow with the illumination time, whereas a mode at 910 cm-1 assigned to SiH2 scissoring vibration decreases. The existence of an isosbestic point and the results from factor analysis reveal the presence of only two species evolving in a correlated way. The hydrogen effusion experiments corroborate that the photo-oxidation takes place in a preferential manner, at the expense of hydrogen bonded as dihydride.
publishDate 2004
dc.date.none.fl_str_mv 2004-03
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/11336/26825
Koropecki, Roberto Roman; Arce, Roberto Delio; Schmidt, Javier Alejandro; Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon; Elsevier Science; Journal of Non-crystalline Solids; 338; 3-2004; 159-162
0022-3093
CONICET Digital
CONICET
url http://hdl.handle.net/11336/26825
identifier_str_mv Koropecki, Roberto Roman; Arce, Roberto Delio; Schmidt, Javier Alejandro; Infrared studies combined with hydrogen effusion experiments on nanostructured porous silicon; Elsevier Science; Journal of Non-crystalline Solids; 338; 3-2004; 159-162
0022-3093
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2004.02.044
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309304001048
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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
publisher.none.fl_str_mv Elsevier Science
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 12.993085

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