Raman study of luminescent spark processed porous GaAs

Article

Detalhes bibliográficos
Autor: ROJAS LÓPEZ, MARLON
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2012
País:México
Recursos:Instituto Politécnico Nacional
Repositório:Repositorio Digital del IPN
OAI Identifier:oai:www.repositoriodigital.ipn.mx:123456789/8559
Acesso em linha:http://www.repositoriodigital.ipn.mx/handle/123456789/8559
Access Level:Acceso aberto
Palavra-chave:porous GaAs
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spelling Raman study of luminescent spark processed porous GaAsROJAS LÓPEZ, MARLONporous GaAsArticleWe have analyzed spark-processed porous GaAs ~spp-GaAs! samples prepared by the application of high-voltage discharges at low repetition rates ~20 Hz! in different ambients, ranging from pure nitrogen to pure oxygen flow, using a microRaman probe and a scanning electron microscope in combination with an energy dispersive spectroscopy system ~SEM-EDS!.We found that for samples prepared in pure nitrogen, the resulting material is basically amorphous material, with amorphous-GaAs with some cubic phase of As2O3 also present. For samples prepared under even a low concentration of oxygen, 20:1, we find that the cubic phase of As2O3 is substituted by the monoclinic phase of As2O3 ‘‘claudetite.’’ SEM micrographs show the resultant morphologies obtained that exhibit a porous, granular, agglomerated granular appearance. EDS and Raman suggest that the claudetite phase of As2O3 and As2O5 play a contributing role in the green-blue photoluminescence emitted by spp-GaAs. © 2001 American Vacuum Society. DOI: 10.1116/1.1366709Instituto Politécnico Nacional CIBA-TlaxcalaMedico-BiológicasPDF2012-11-26T21:27:24Z2012-11-26T21:27:24Z2012-11-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://www.repositoriodigital.ipn.mx/handle/123456789/8559reponame:Repositorio Digital del IPNinstname:Instituto Politécnico Nacionalinstacron:IPNeninfo:eu-repo/semantics/openAccessoai:www.repositoriodigital.ipn.mx:123456789/85592026-02-18T16:39:56Z
dc.title.none.fl_str_mv Raman study of luminescent spark processed porous GaAs
title Raman study of luminescent spark processed porous GaAs
spellingShingle Raman study of luminescent spark processed porous GaAs
ROJAS LÓPEZ, MARLON
porous GaAs
title_short Raman study of luminescent spark processed porous GaAs
title_full Raman study of luminescent spark processed porous GaAs
title_fullStr Raman study of luminescent spark processed porous GaAs
title_full_unstemmed Raman study of luminescent spark processed porous GaAs
title_sort Raman study of luminescent spark processed porous GaAs
dc.creator.none.fl_str_mv ROJAS LÓPEZ, MARLON
author ROJAS LÓPEZ, MARLON
author_facet ROJAS LÓPEZ, MARLON
author_role author
dc.subject.none.fl_str_mv porous GaAs
topic porous GaAs
description Article
publishDate 2012
dc.date.none.fl_str_mv 2012-11-26T21:27:24Z
2012-11-26T21:27:24Z
2012-11-26
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://www.repositoriodigital.ipn.mx/handle/123456789/8559
url http://www.repositoriodigital.ipn.mx/handle/123456789/8559
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositorio Digital del IPN
instname:Instituto Politécnico Nacional
instacron:IPN
instname_str Instituto Politécnico Nacional
instacron_str IPN
institution IPN
reponame_str Repositorio Digital del IPN
collection Repositorio Digital del IPN
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.198674

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