Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process

Detalhes bibliográficos
Autor(a) principal: Freiria,Gabriela S.
Data de Publicação: 2018
Outros Autores: Ribeiro,Amanda L., Verelst,Marc, Nassar,Eduardo J., Rocha,Lucas A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000300594
Resumo: In this study, Dy3+-doped LaNbO4 phosphors with a blue to white emission that can be tuned by varying the activator concentration were prepared by one-step spray pyrolysis process. According to the powder X-ray diffraction results, increasing Dy3+ concentration favored the tetragonal phase. Slight changes were observed in the recorded Raman spectra as a function of Dy3+ concentrations while SEM (scanning electron microscopy) micrographs presented similar profiles regardless the Dy3+ amount. Investigation of Dy3+ emission data in the visible range showed that rising the Dy3+ concentration progressively shifted the emission towards the white color. All samples presented a wide excitation range from 254 to 475 nm.
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spelling Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Processspray pyrolysisluminescencelanthanum niobateIn this study, Dy3+-doped LaNbO4 phosphors with a blue to white emission that can be tuned by varying the activator concentration were prepared by one-step spray pyrolysis process. According to the powder X-ray diffraction results, increasing Dy3+ concentration favored the tetragonal phase. Slight changes were observed in the recorded Raman spectra as a function of Dy3+ concentrations while SEM (scanning electron microscopy) micrographs presented similar profiles regardless the Dy3+ amount. Investigation of Dy3+ emission data in the visible range showed that rising the Dy3+ concentration progressively shifted the emission towards the white color. All samples presented a wide excitation range from 254 to 475 nm.Sociedade Brasileira de Química2018-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000300594Journal of the Brazilian Chemical Society v.29 n.3 2018reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20170172info:eu-repo/semantics/openAccessFreiria,Gabriela S.Ribeiro,Amanda L.Verelst,MarcNassar,Eduardo J.Rocha,Lucas A.eng2018-02-28T00:00:00Zoai:scielo:S0103-50532018000300594Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2018-02-28T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
title Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
spellingShingle Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
Freiria,Gabriela S.
spray pyrolysis
luminescence
lanthanum niobate
title_short Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
title_full Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
title_fullStr Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
title_full_unstemmed Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
title_sort Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process
author Freiria,Gabriela S.
author_facet Freiria,Gabriela S.
Ribeiro,Amanda L.
Verelst,Marc
Nassar,Eduardo J.
Rocha,Lucas A.
author_role author
author2 Ribeiro,Amanda L.
Verelst,Marc
Nassar,Eduardo J.
Rocha,Lucas A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Freiria,Gabriela S.
Ribeiro,Amanda L.
Verelst,Marc
Nassar,Eduardo J.
Rocha,Lucas A.
dc.subject.por.fl_str_mv spray pyrolysis
luminescence
lanthanum niobate
topic spray pyrolysis
luminescence
lanthanum niobate
description In this study, Dy3+-doped LaNbO4 phosphors with a blue to white emission that can be tuned by varying the activator concentration were prepared by one-step spray pyrolysis process. According to the powder X-ray diffraction results, increasing Dy3+ concentration favored the tetragonal phase. Slight changes were observed in the recorded Raman spectra as a function of Dy3+ concentrations while SEM (scanning electron microscopy) micrographs presented similar profiles regardless the Dy3+ amount. Investigation of Dy3+ emission data in the visible range showed that rising the Dy3+ concentration progressively shifted the emission towards the white color. All samples presented a wide excitation range from 254 to 475 nm.
publishDate 2018
dc.date.none.fl_str_mv 2018-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000300594
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000300594
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.21577/0103-5053.20170172
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
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 Journal of the Brazilian Chemical Society v.29 n.3 2018
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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