Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route

Autores
Fernández Solarte, Alejandra María; Pellegri, Nora Susana; de Sanctis, Oscar Alberto; Stachiotti, Marcelo Gabriel
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Na0.5K0.5NbO3 (NKN) thin films were prepared by a chelate route which offers the advantage of a simple and rapid solution synthesis. The route is based on the use of acetoin as chelating agent. The process was optimized by investigating the effects of alkaline volatilization on film properties. While we observed no evidence of stoichiometry problems due to potassium volatilization loss during the heat treatments, thin films synthesized with insufficient sodium excess presented a potassium rich secondary phase, which has a significant influence on the ferroelectric properties. We show that the amount of spurious phase decreases with increasing Na+ concentration, in such a way that a 20 mol% Na+ excess is necessary to fully compensate the volatilization loss occurred during the heat treatment. In this way, NKN thin films annealed at 650ºC presented a well crystallized perovskite structure, no secondary phases, well-defined ferroelectric hysteresis loops (Pr ~ 9 μC/cm2, Ec ~ 45 kV/cm), and low leakage current density (2 × 10−7 A/cm2 at 80 kV/cm).
Fil: Fernández Solarte, Alejandra María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Pellegri, Nora Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: de Sanctis, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Stachiotti, Marcelo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Materia
NKN thin films
Chelate route
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:11336/5962
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5962
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate routeFernández Solarte, Alejandra MaríaPellegri, Nora Susanade Sanctis, Oscar AlbertoStachiotti, Marcelo GabrielNKN thin filmsChelate routehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Na0.5K0.5NbO3 (NKN) thin films were prepared by a chelate route which offers the advantage of a simple and rapid solution synthesis. The route is based on the use of acetoin as chelating agent. The process was optimized by investigating the effects of alkaline volatilization on film properties. While we observed no evidence of stoichiometry problems due to potassium volatilization loss during the heat treatments, thin films synthesized with insufficient sodium excess presented a potassium rich secondary phase, which has a significant influence on the ferroelectric properties. We show that the amount of spurious phase decreases with increasing Na+ concentration, in such a way that a 20 mol% Na+ excess is necessary to fully compensate the volatilization loss occurred during the heat treatment. In this way, NKN thin films annealed at 650ºC presented a well crystallized perovskite structure, no secondary phases, well-defined ferroelectric hysteresis loops (Pr ~ 9 μC/cm2, Ec ~ 45 kV/cm), and low leakage current density (2 × 10−7 A/cm2 at 80 kV/cm).Fil: Fernández Solarte, Alejandra María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); ArgentinaFil: Pellegri, Nora Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); ArgentinaFil: de Sanctis, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); ArgentinaFil: Stachiotti, Marcelo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); ArgentinaHindawi Publishing Corporation2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5962Fernández Solarte, Alejandra María; Pellegri, Nora Susana; de Sanctis, Oscar Alberto; Stachiotti, Marcelo Gabriel; Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route; Hindawi Publishing Corporation; Journal of Ceramics; 2013; 5-2013; 850751-8507512090-8628enginfo:eu-repo/semantics/altIdentifier/url/http://www.hindawi.com/journals/jceram/2013/850751/info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1155/2013/850751info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:48Zoai:ri.conicet.gov.ar:11336/5962instacron: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:34982025-10-22 11:01:48.765CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
title Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
spellingShingle Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
Fernández Solarte, Alejandra María
NKN thin films
Chelate route
title_short Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
title_full Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
title_fullStr Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
title_full_unstemmed Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
title_sort Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route
dc.creator.none.fl_str_mv Fernández Solarte, Alejandra María
Pellegri, Nora Susana
de Sanctis, Oscar Alberto
Stachiotti, Marcelo Gabriel
author Fernández Solarte, Alejandra María
author_facet Fernández Solarte, Alejandra María
Pellegri, Nora Susana
de Sanctis, Oscar Alberto
Stachiotti, Marcelo Gabriel
author_role author
author2 Pellegri, Nora Susana
de Sanctis, Oscar Alberto
Stachiotti, Marcelo Gabriel
author2_role author
author
author
dc.subject.none.fl_str_mv NKN thin films
Chelate route
topic NKN thin films
Chelate route
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Na0.5K0.5NbO3 (NKN) thin films were prepared by a chelate route which offers the advantage of a simple and rapid solution synthesis. The route is based on the use of acetoin as chelating agent. The process was optimized by investigating the effects of alkaline volatilization on film properties. While we observed no evidence of stoichiometry problems due to potassium volatilization loss during the heat treatments, thin films synthesized with insufficient sodium excess presented a potassium rich secondary phase, which has a significant influence on the ferroelectric properties. We show that the amount of spurious phase decreases with increasing Na+ concentration, in such a way that a 20 mol% Na+ excess is necessary to fully compensate the volatilization loss occurred during the heat treatment. In this way, NKN thin films annealed at 650ºC presented a well crystallized perovskite structure, no secondary phases, well-defined ferroelectric hysteresis loops (Pr ~ 9 μC/cm2, Ec ~ 45 kV/cm), and low leakage current density (2 × 10−7 A/cm2 at 80 kV/cm).
Fil: Fernández Solarte, Alejandra María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Pellegri, Nora Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: de Sanctis, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Stachiotti, Marcelo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
description Na0.5K0.5NbO3 (NKN) thin films were prepared by a chelate route which offers the advantage of a simple and rapid solution synthesis. The route is based on the use of acetoin as chelating agent. The process was optimized by investigating the effects of alkaline volatilization on film properties. While we observed no evidence of stoichiometry problems due to potassium volatilization loss during the heat treatments, thin films synthesized with insufficient sodium excess presented a potassium rich secondary phase, which has a significant influence on the ferroelectric properties. We show that the amount of spurious phase decreases with increasing Na+ concentration, in such a way that a 20 mol% Na+ excess is necessary to fully compensate the volatilization loss occurred during the heat treatment. In this way, NKN thin films annealed at 650ºC presented a well crystallized perovskite structure, no secondary phases, well-defined ferroelectric hysteresis loops (Pr ~ 9 μC/cm2, Ec ~ 45 kV/cm), and low leakage current density (2 × 10−7 A/cm2 at 80 kV/cm).
publishDate 2013
dc.date.none.fl_str_mv 2013-05
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/11336/5962
Fernández Solarte, Alejandra María; Pellegri, Nora Susana; de Sanctis, Oscar Alberto; Stachiotti, Marcelo Gabriel; Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route; Hindawi Publishing Corporation; Journal of Ceramics; 2013; 5-2013; 850751-850751
2090-8628
url http://hdl.handle.net/11336/5962
identifier_str_mv Fernández Solarte, Alejandra María; Pellegri, Nora Susana; de Sanctis, Oscar Alberto; Stachiotti, Marcelo Gabriel; Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route; Hindawi Publishing Corporation; Journal of Ceramics; 2013; 5-2013; 850751-850751
2090-8628
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.hindawi.com/journals/jceram/2013/850751/
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1155/2013/850751
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
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Hindawi Publishing Corporation
publisher.none.fl_str_mv Hindawi Publishing Corporation
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 12.982451

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