Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.optmat.2018.06.023 http://hdl.handle.net/11449/179995 |
Resumo: | Structural, morphological and spectroscopic characterization of the Eu3+-doped Y2(MoO4)3 red phosphor incorporated with Au nanoparticles (Au NPs) synthesized via Pechini's method is reported in the present study. In order to evaluate the Au NPs and Eu3+ ions influence on the molybdate structure, the Y2(MoO4)3, Y2(MoO4)3:Eu3+, Y2(MoO4)3/Au and Y2(MoO4)3:Eu3+/Au samples were produced and fully investigated. All samples obtained at relatively low temperature, i.e., 650 °C, show molybdate as the unique phase with high crystallinity assisted by both Eu3+ ions and Au NPs. Water molecules detected in the molybdate structure probably are distorting MoO4, YO6 and EuO6 polyhedra similarly to the Au NPs incorporated in the same lattice. These Au NPs are spherical-shaped with a diameter near to 46 nm and they are located on the molybdate particle surface. The Eu3+-doped phosphors, with or without the presence of Au NPs, exhibit intense red luminescence characteristic of the Eu3+ ion inserted in low-symmetry sites. However, the Au NPs increase the radiative emission rate and absolute quantum yield of the Eu3+ 5D0 emitter state due to the excitation field enhancement caused by the local surface plasmon resonance absorption effect of gold nanoparticles, which was confirmed by diffuse reflectance measurements. Finally, the Eu3+ quantum efficiency enhancement to 92% played by the gold nanoparticles and the high red color purity qualify the obtained phosphor for photonic applications. |
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Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's methodAu nanoparticlesEuropium(III)LuminescenceMolybdatesStructural, morphological and spectroscopic characterization of the Eu3+-doped Y2(MoO4)3 red phosphor incorporated with Au nanoparticles (Au NPs) synthesized via Pechini's method is reported in the present study. In order to evaluate the Au NPs and Eu3+ ions influence on the molybdate structure, the Y2(MoO4)3, Y2(MoO4)3:Eu3+, Y2(MoO4)3/Au and Y2(MoO4)3:Eu3+/Au samples were produced and fully investigated. All samples obtained at relatively low temperature, i.e., 650 °C, show molybdate as the unique phase with high crystallinity assisted by both Eu3+ ions and Au NPs. Water molecules detected in the molybdate structure probably are distorting MoO4, YO6 and EuO6 polyhedra similarly to the Au NPs incorporated in the same lattice. These Au NPs are spherical-shaped with a diameter near to 46 nm and they are located on the molybdate particle surface. The Eu3+-doped phosphors, with or without the presence of Au NPs, exhibit intense red luminescence characteristic of the Eu3+ ion inserted in low-symmetry sites. However, the Au NPs increase the radiative emission rate and absolute quantum yield of the Eu3+ 5D0 emitter state due to the excitation field enhancement caused by the local surface plasmon resonance absorption effect of gold nanoparticles, which was confirmed by diffuse reflectance measurements. Finally, the Eu3+ quantum efficiency enhancement to 92% played by the gold nanoparticles and the high red color purity qualify the obtained phosphor for photonic applications.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University (Unesp) School of Technology and SciencesSão Paulo State University (Unesp) Institute of Biosciences Humanities and Exact SciencesSão Paulo State University (Unesp) School of Technology and SciencesSão Paulo State University (Unesp) Institute of Biosciences Humanities and Exact SciencesFAPESP: 2012/13876-9FAPESP: 2015/10394-1FAPESP: 2016/20421-9Universidade Estadual Paulista (Unesp)Bispo-Jr, Airton Germano [UNESP]Shinohara, Gabriel Mamoru Marques [UNESP]Pires, Ana Maria [UNESP]Cardoso, Celso Xavier [UNESP]2018-12-11T17:37:35Z2018-12-11T17:37:35Z2018-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article137-145application/pdfhttp://dx.doi.org/10.1016/j.optmat.2018.06.023Optical Materials, v. 84, p. 137-145.0925-3467http://hdl.handle.net/11449/17999510.1016/j.optmat.2018.06.0232-s2.0-850493123582-s2.0-85049312358.pdf49219483748200650000-0002-7772-2701Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOptical Materials0,592info:eu-repo/semantics/openAccess2024-06-19T12:44:40Zoai:repositorio.unesp.br:11449/179995Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:14:54.624312Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
title |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
spellingShingle |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method Bispo-Jr, Airton Germano [UNESP] Au nanoparticles Europium(III) Luminescence Molybdates |
title_short |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
title_full |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
title_fullStr |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
title_full_unstemmed |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
title_sort |
Red phosphor based on Eu3+-doped Y2(MoO4)3 incorporated with Au NPs synthesized via Pechini's method |
author |
Bispo-Jr, Airton Germano [UNESP] |
author_facet |
Bispo-Jr, Airton Germano [UNESP] Shinohara, Gabriel Mamoru Marques [UNESP] Pires, Ana Maria [UNESP] Cardoso, Celso Xavier [UNESP] |
author_role |
author |
author2 |
Shinohara, Gabriel Mamoru Marques [UNESP] Pires, Ana Maria [UNESP] Cardoso, Celso Xavier [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bispo-Jr, Airton Germano [UNESP] Shinohara, Gabriel Mamoru Marques [UNESP] Pires, Ana Maria [UNESP] Cardoso, Celso Xavier [UNESP] |
dc.subject.por.fl_str_mv |
Au nanoparticles Europium(III) Luminescence Molybdates |
topic |
Au nanoparticles Europium(III) Luminescence Molybdates |
description |
Structural, morphological and spectroscopic characterization of the Eu3+-doped Y2(MoO4)3 red phosphor incorporated with Au nanoparticles (Au NPs) synthesized via Pechini's method is reported in the present study. In order to evaluate the Au NPs and Eu3+ ions influence on the molybdate structure, the Y2(MoO4)3, Y2(MoO4)3:Eu3+, Y2(MoO4)3/Au and Y2(MoO4)3:Eu3+/Au samples were produced and fully investigated. All samples obtained at relatively low temperature, i.e., 650 °C, show molybdate as the unique phase with high crystallinity assisted by both Eu3+ ions and Au NPs. Water molecules detected in the molybdate structure probably are distorting MoO4, YO6 and EuO6 polyhedra similarly to the Au NPs incorporated in the same lattice. These Au NPs are spherical-shaped with a diameter near to 46 nm and they are located on the molybdate particle surface. The Eu3+-doped phosphors, with or without the presence of Au NPs, exhibit intense red luminescence characteristic of the Eu3+ ion inserted in low-symmetry sites. However, the Au NPs increase the radiative emission rate and absolute quantum yield of the Eu3+ 5D0 emitter state due to the excitation field enhancement caused by the local surface plasmon resonance absorption effect of gold nanoparticles, which was confirmed by diffuse reflectance measurements. Finally, the Eu3+ quantum efficiency enhancement to 92% played by the gold nanoparticles and the high red color purity qualify the obtained phosphor for photonic applications. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:37:35Z 2018-12-11T17:37:35Z 2018-10-01 |
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/10.1016/j.optmat.2018.06.023 Optical Materials, v. 84, p. 137-145. 0925-3467 http://hdl.handle.net/11449/179995 10.1016/j.optmat.2018.06.023 2-s2.0-85049312358 2-s2.0-85049312358.pdf 4921948374820065 0000-0002-7772-2701 |
url |
http://dx.doi.org/10.1016/j.optmat.2018.06.023 http://hdl.handle.net/11449/179995 |
identifier_str_mv |
Optical Materials, v. 84, p. 137-145. 0925-3467 10.1016/j.optmat.2018.06.023 2-s2.0-85049312358 2-s2.0-85049312358.pdf 4921948374820065 0000-0002-7772-2701 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Optical Materials 0,592 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
137-145 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808129041364942848 |