Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique

Trivalent samarium (Sm3+) doped hafnium oxide (HfO2) films were deposited using the spray pyrolysis deposition technique. The films were deposited on Corning glass substrates at temperatures ranging from 300 to 550 ◦C using chlorides as raw materials. Films, mostly amorphous, were obtained when depo...

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Detalles Bibliográficos
Autor: GUZMAN MENDOZA, JOSE
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:México
Institución:Instituto Politécnico Nacional
Repositorio:Repositorio Digital del IPN
OAI Identifier:oai:www.repositoriodigital.ipn.mx:123456789/11613
Acceso en línea:http://hdl.handle.net/123456789/1145
http://www.repositoriodigital.ipn.mx/handle/123456789/11613
Access Level:acceso abierto
Palabra clave:HAFNIUM OXIDE
SAMARIUM
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spelling Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis techniqueGUZMAN MENDOZA, JOSEHAFNIUM OXIDESAMARIUMTrivalent samarium (Sm3+) doped hafnium oxide (HfO2) films were deposited using the spray pyrolysis deposition technique. The films were deposited on Corning glass substrates at temperatures ranging from 300 to 550 ◦C using chlorides as raw materials. Films, mostly amorphous, were obtained when deposition temperatures were below 350 ◦C. However, for temperatures higher than 400 ◦C, the films became polycrystalline, presenting the HfO2 monoclinic phase. Scanning electron microscopy of the films revealed a rough surface morphology with spherical particles. Also, electron energy dispersive analysis was performed on these films. The photoluminescence and cathodoluminescence characteristics of the HfO2 : SmCl3 films, measured at room temperature, exhibited four main bands centred at 570, 610, 652 and 716 nm, which are due to the well-known intra-4f transitions of the Sm3+ ion. It was found that the overall emission intensity rose as the deposition temperature was increased. Furthermore, a concentration quenching of the luminescence intensity was also observed.IOP PUBLISHING2012-03-29T16:29:08Z2012-03-29T16:29:08Z20082013-01-16T16:23:14Z2013-01-16T16:23:14Z2013-01-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/123456789/1145http://www.repositoriodigital.ipn.mx/handle/123456789/11613reponame:Repositorio Digital del IPNinstname:Instituto Politécnico Nacionalinstacron:IPNen_USinfo:eu-repo/semantics/openAccessoai:www.repositoriodigital.ipn.mx:123456789/116132026-02-18T16:41:27Z
dc.title.none.fl_str_mv Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
title Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
spellingShingle Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
GUZMAN MENDOZA, JOSE
HAFNIUM OXIDE
SAMARIUM
title_short Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
title_full Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
title_fullStr Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
title_full_unstemmed Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
title_sort Characterization of luminescent samarium doped HfO2 coatings synthesized by spray pyrolysis technique
dc.creator.none.fl_str_mv GUZMAN MENDOZA, JOSE
author GUZMAN MENDOZA, JOSE
author_facet GUZMAN MENDOZA, JOSE
author_role author
dc.subject.none.fl_str_mv HAFNIUM OXIDE
SAMARIUM
topic HAFNIUM OXIDE
SAMARIUM
description Trivalent samarium (Sm3+) doped hafnium oxide (HfO2) films were deposited using the spray pyrolysis deposition technique. The films were deposited on Corning glass substrates at temperatures ranging from 300 to 550 ◦C using chlorides as raw materials. Films, mostly amorphous, were obtained when deposition temperatures were below 350 ◦C. However, for temperatures higher than 400 ◦C, the films became polycrystalline, presenting the HfO2 monoclinic phase. Scanning electron microscopy of the films revealed a rough surface morphology with spherical particles. Also, electron energy dispersive analysis was performed on these films. The photoluminescence and cathodoluminescence characteristics of the HfO2 : SmCl3 films, measured at room temperature, exhibited four main bands centred at 570, 610, 652 and 716 nm, which are due to the well-known intra-4f transitions of the Sm3+ ion. It was found that the overall emission intensity rose as the deposition temperature was increased. Furthermore, a concentration quenching of the luminescence intensity was also observed.
publishDate 2008
dc.date.none.fl_str_mv 2008
2012-03-29T16:29:08Z
2012-03-29T16:29:08Z
2013-01-16T16:23:14Z
2013-01-16T16:23:14Z
2013-01-16
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://hdl.handle.net/123456789/1145
http://www.repositoriodigital.ipn.mx/handle/123456789/11613
url http://hdl.handle.net/123456789/1145
http://www.repositoriodigital.ipn.mx/handle/123456789/11613
dc.language.none.fl_str_mv en_US
language_invalid_str_mv en_US
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP PUBLISHING
publisher.none.fl_str_mv IOP PUBLISHING
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 15,812429

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