Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos

Bibliographic Details
Main Author: Souza, Luciana A. [UNESP]
Publication Date: 2002
Other Authors: Messaddeq, Younes [UNESP], Ribeiro, Sidney José Lima [UNESP], Fredericci, Catia, Lanciotti Jr., Francesco, Pizani, Paulo S.
Format: Article
Language: por
Source: Repositório Institucional da UNESP
Download full: http://dx.doi.org/10.1590/S0100-40422002000700004
http://hdl.handle.net/11449/27580
Summary: The ferroelectric compound LiNbO3 was prepared by the polymeric precursors method in the polycrystalline form containing different concentrations of Eu3+. The compounds were characterized by X-ray diffraction, vibrational and electronic spectroscopy. Electronic spectroscopy was shown to be sensitive to small concentrations of contaminating phases allowing a good control of the compound purity. The presence of Eu3+ ions leads to the formation of the LiNb3O8 phase in the range of 500 to 800 °C. Above this temperature range LiNbO3 and tetragonal (T') EuNbO4 were obtained.
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spelling Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricosPreparation of LiNbO3 and LiNbO3:Eu3+ by the polymeric precursors methodPechini methodlithium niobateeuropium luminescenceThe ferroelectric compound LiNbO3 was prepared by the polymeric precursors method in the polycrystalline form containing different concentrations of Eu3+. The compounds were characterized by X-ray diffraction, vibrational and electronic spectroscopy. Electronic spectroscopy was shown to be sensitive to small concentrations of contaminating phases allowing a good control of the compound purity. The presence of Eu3+ ions leads to the formation of the LiNb3O8 phase in the range of 500 to 800 °C. Above this temperature range LiNbO3 and tetragonal (T') EuNbO4 were obtained.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista Instituto de QuímicaUniversidade Federal de São Carlos (UFSCar) Departamento de Engenharia de MateriaisUniversidade Federal de São Carlos (UFSCar) Departamento de FísicaUniversidade Estadual Paulista Instituto de QuímicaSociedade Brasileira de QuímicaUniversidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)Souza, Luciana A. [UNESP]Messaddeq, Younes [UNESP]Ribeiro, Sidney José Lima [UNESP]Fredericci, CatiaLanciotti Jr., FrancescoPizani, Paulo S.2014-05-20T15:10:19Z2014-05-20T15:10:19Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1067-1073application/pdfhttp://dx.doi.org/10.1590/S0100-40422002000700004Química Nova. Sociedade Brasileira de Química, v. 25, n. 6b, p. 1067-1073, 2002.0100-4042http://hdl.handle.net/11449/2758010.1590/S0100-40422002000700004S0100-40422002000700004S0100-40422002000700004.pdf299850384191781564460474630346540000-0003-3286-9440SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporQuímica Nova0.6460,255info:eu-repo/semantics/openAccess2023-11-15T06:10:05Zoai:repositorio.unesp.br:11449/27580Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-15T06:10:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
Preparation of LiNbO3 and LiNbO3:Eu3+ by the polymeric precursors method
title Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
spellingShingle Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
Souza, Luciana A. [UNESP]
Pechini method
lithium niobate
europium luminescence
title_short Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
title_full Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
title_fullStr Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
title_full_unstemmed Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
title_sort Preparação de LiNbO3 e LiNbO3:Eu3+ pelo método dos precursores poliméricos
author Souza, Luciana A. [UNESP]
author_facet Souza, Luciana A. [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Fredericci, Catia
Lanciotti Jr., Francesco
Pizani, Paulo S.
author_role author
author2 Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Fredericci, Catia
Lanciotti Jr., Francesco
Pizani, Paulo S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de São Carlos (UFSCar)
dc.contributor.author.fl_str_mv Souza, Luciana A. [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Fredericci, Catia
Lanciotti Jr., Francesco
Pizani, Paulo S.
dc.subject.por.fl_str_mv Pechini method
lithium niobate
europium luminescence
topic Pechini method
lithium niobate
europium luminescence
description The ferroelectric compound LiNbO3 was prepared by the polymeric precursors method in the polycrystalline form containing different concentrations of Eu3+. The compounds were characterized by X-ray diffraction, vibrational and electronic spectroscopy. Electronic spectroscopy was shown to be sensitive to small concentrations of contaminating phases allowing a good control of the compound purity. The presence of Eu3+ ions leads to the formation of the LiNb3O8 phase in the range of 500 to 800 °C. Above this temperature range LiNbO3 and tetragonal (T') EuNbO4 were obtained.
publishDate 2002
dc.date.none.fl_str_mv 2002-12-01
2014-05-20T15:10:19Z
2014-05-20T15:10:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-40422002000700004
Química Nova. Sociedade Brasileira de Química, v. 25, n. 6b, p. 1067-1073, 2002.
0100-4042
http://hdl.handle.net/11449/27580
10.1590/S0100-40422002000700004
S0100-40422002000700004
S0100-40422002000700004.pdf
2998503841917815
6446047463034654
0000-0003-3286-9440
url http://dx.doi.org/10.1590/S0100-40422002000700004
http://hdl.handle.net/11449/27580
identifier_str_mv Química Nova. Sociedade Brasileira de Química, v. 25, n. 6b, p. 1067-1073, 2002.
0100-4042
10.1590/S0100-40422002000700004
S0100-40422002000700004
S0100-40422002000700004.pdf
2998503841917815
6446047463034654
0000-0003-3286-9440
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Química Nova
0.646
0,255
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1067-1073
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1797789709327400960

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