Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers

Autores
Peñaloza Mendoza, Y.; Alvira, Fernando Carlos; Caballero Briones, F.; Guarneros Aguilar, C.; Ponce, L.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
TiO2 films were deposited onto glass substrates by pulsed laser deposition (PLD) in high vacuum under monopulse and multipulse excitation. After deposition, a thermal treatment on air atmosphere was done to promote crystallization. Films were studied by x-ray diffraction, energy dispersive spectroscopy, scanning electron, atomic force microscopy, UV-vis spectroscopy, and ellipsometry. After air annealing, films gain a different amount of oxygen: TiO1.9 in multipulse regime versus TiO1.7 in the monopulse one. Splashing is observed in both regimes although in the multipulse mode greater particles are found, that derived in a less compact film after annealing which could be the cause of the better oxygen diffusion. The optical band gap of the film prepared with monopulse excitation is 3.09 eV. This value increased to 3.34 eV with annealing, corresponding to that of anatase. The film made with multipulses has an Eg = 3.12 eV which was invariant upon annealing. The difference in the properties of the films grown in the different regimes was attributed to the re-excitation of the plasma during the ablation process in the multipulse ablation that leads to an increased splashing density and thereafter a less compact film and the presence of off-stoichiometry inclusions within the film bulk.
Fil: Peñaloza Mendoza, Y.. Instituto Politécnico Nacional; México
Fil: Alvira, Fernando Carlos. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Biomembranas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Caballero Briones, F.. Instituto Politécnico Nacional; México
Fil: Guarneros Aguilar, C.. Instituto Politécnico Nacional; México
Fil: Ponce, L.. Instituto Politécnico Nacional; México
Materia
Multipulse And Monopulse Regimes
Pulsed Laser Deposition
Tio2
Tio2 Air Annealing
Tio2 Optical Properties
Tio2 Structure
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/82639
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayersPeñaloza Mendoza, Y.Alvira, Fernando CarlosCaballero Briones, F.Guarneros Aguilar, C.Ponce, L.Multipulse And Monopulse RegimesPulsed Laser DepositionTio2Tio2 Air AnnealingTio2 Optical PropertiesTio2 Structurehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2TiO2 films were deposited onto glass substrates by pulsed laser deposition (PLD) in high vacuum under monopulse and multipulse excitation. After deposition, a thermal treatment on air atmosphere was done to promote crystallization. Films were studied by x-ray diffraction, energy dispersive spectroscopy, scanning electron, atomic force microscopy, UV-vis spectroscopy, and ellipsometry. After air annealing, films gain a different amount of oxygen: TiO1.9 in multipulse regime versus TiO1.7 in the monopulse one. Splashing is observed in both regimes although in the multipulse mode greater particles are found, that derived in a less compact film after annealing which could be the cause of the better oxygen diffusion. The optical band gap of the film prepared with monopulse excitation is 3.09 eV. This value increased to 3.34 eV with annealing, corresponding to that of anatase. The film made with multipulses has an Eg = 3.12 eV which was invariant upon annealing. The difference in the properties of the films grown in the different regimes was attributed to the re-excitation of the plasma during the ablation process in the multipulse ablation that leads to an increased splashing density and thereafter a less compact film and the presence of off-stoichiometry inclusions within the film bulk.Fil: Peñaloza Mendoza, Y.. Instituto Politécnico Nacional; MéxicoFil: Alvira, Fernando Carlos. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Biomembranas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Caballero Briones, F.. Instituto Politécnico Nacional; MéxicoFil: Guarneros Aguilar, C.. Instituto Politécnico Nacional; MéxicoFil: Ponce, L.. Instituto Politécnico Nacional; MéxicoIOP Publishing2018-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82639Peñaloza Mendoza, Y.; Alvira, Fernando Carlos; Caballero Briones, F.; Guarneros Aguilar, C.; Ponce, L.; Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers; IOP Publishing; Materials Research Express; 5; 12; 12-2018; 125022-1250312053-1591CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/2053-1591/aae2e5info:eu-repo/semantics/altIdentifier/doi/10.1088/2053-1591/aae2e5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:51:54Zoai:ri.conicet.gov.ar:11336/82639instacron: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:34982025-09-03 09:51:55.742CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
title Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
spellingShingle Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
Peñaloza Mendoza, Y.
Multipulse And Monopulse Regimes
Pulsed Laser Deposition
Tio2
Tio2 Air Annealing
Tio2 Optical Properties
Tio2 Structure
title_short Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
title_full Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
title_fullStr Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
title_full_unstemmed Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
title_sort Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers
dc.creator.none.fl_str_mv Peñaloza Mendoza, Y.
Alvira, Fernando Carlos
Caballero Briones, F.
Guarneros Aguilar, C.
Ponce, L.
author Peñaloza Mendoza, Y.
author_facet Peñaloza Mendoza, Y.
Alvira, Fernando Carlos
Caballero Briones, F.
Guarneros Aguilar, C.
Ponce, L.
author_role author
author2 Alvira, Fernando Carlos
Caballero Briones, F.
Guarneros Aguilar, C.
Ponce, L.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Multipulse And Monopulse Regimes
Pulsed Laser Deposition
Tio2
Tio2 Air Annealing
Tio2 Optical Properties
Tio2 Structure
topic Multipulse And Monopulse Regimes
Pulsed Laser Deposition
Tio2
Tio2 Air Annealing
Tio2 Optical Properties
Tio2 Structure
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv TiO2 films were deposited onto glass substrates by pulsed laser deposition (PLD) in high vacuum under monopulse and multipulse excitation. After deposition, a thermal treatment on air atmosphere was done to promote crystallization. Films were studied by x-ray diffraction, energy dispersive spectroscopy, scanning electron, atomic force microscopy, UV-vis spectroscopy, and ellipsometry. After air annealing, films gain a different amount of oxygen: TiO1.9 in multipulse regime versus TiO1.7 in the monopulse one. Splashing is observed in both regimes although in the multipulse mode greater particles are found, that derived in a less compact film after annealing which could be the cause of the better oxygen diffusion. The optical band gap of the film prepared with monopulse excitation is 3.09 eV. This value increased to 3.34 eV with annealing, corresponding to that of anatase. The film made with multipulses has an Eg = 3.12 eV which was invariant upon annealing. The difference in the properties of the films grown in the different regimes was attributed to the re-excitation of the plasma during the ablation process in the multipulse ablation that leads to an increased splashing density and thereafter a less compact film and the presence of off-stoichiometry inclusions within the film bulk.
Fil: Peñaloza Mendoza, Y.. Instituto Politécnico Nacional; México
Fil: Alvira, Fernando Carlos. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Biomembranas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Caballero Briones, F.. Instituto Politécnico Nacional; México
Fil: Guarneros Aguilar, C.. Instituto Politécnico Nacional; México
Fil: Ponce, L.. Instituto Politécnico Nacional; México
description TiO2 films were deposited onto glass substrates by pulsed laser deposition (PLD) in high vacuum under monopulse and multipulse excitation. After deposition, a thermal treatment on air atmosphere was done to promote crystallization. Films were studied by x-ray diffraction, energy dispersive spectroscopy, scanning electron, atomic force microscopy, UV-vis spectroscopy, and ellipsometry. After air annealing, films gain a different amount of oxygen: TiO1.9 in multipulse regime versus TiO1.7 in the monopulse one. Splashing is observed in both regimes although in the multipulse mode greater particles are found, that derived in a less compact film after annealing which could be the cause of the better oxygen diffusion. The optical band gap of the film prepared with monopulse excitation is 3.09 eV. This value increased to 3.34 eV with annealing, corresponding to that of anatase. The film made with multipulses has an Eg = 3.12 eV which was invariant upon annealing. The difference in the properties of the films grown in the different regimes was attributed to the re-excitation of the plasma during the ablation process in the multipulse ablation that leads to an increased splashing density and thereafter a less compact film and the presence of off-stoichiometry inclusions within the film bulk.
publishDate 2018
dc.date.none.fl_str_mv 2018-12
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/11336/82639
Peñaloza Mendoza, Y.; Alvira, Fernando Carlos; Caballero Briones, F.; Guarneros Aguilar, C.; Ponce, L.; Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers; IOP Publishing; Materials Research Express; 5; 12; 12-2018; 125022-125031
2053-1591
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82639
identifier_str_mv Peñaloza Mendoza, Y.; Alvira, Fernando Carlos; Caballero Briones, F.; Guarneros Aguilar, C.; Ponce, L.; Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers; IOP Publishing; Materials Research Express; 5; 12; 12-2018; 125022-125031
2053-1591
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://iopscience.iop.org/article/10.1088/2053-1591/aae2e5
info:eu-repo/semantics/altIdentifier/doi/10.1088/2053-1591/aae2e5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
_version_ 1842269125112496128
score 13.13397

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