Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation

Detalhes bibliográficos
Autor(a) principal: Nunes, Daniela
Data de Publicação: 2019
Outros Autores: Pimentel, Ana, Matias, Mariana, Freire, Tomas, Araujo, A., Silva, Filipe, Gaspar, Patricia, Garcia, Silvia, Carvalho, Patricia A., Fortunato, Elvira, Martins, Rodrigo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/71014
Resumo: The authors also acknowledge funding from the European Commission through the projects 1D-NEON (H2020-NMP-2015, grant 685758-21D). The work was also partially funded by the Nanomark collaborative project between INCM (Imprensa Nacional-Casa da Moeda) and CENIMAT/i3N. P.A. Carvalho acknowledges support from the Research Council of Norway through grants 275752 and 197405/F50.
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spelling Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediationmicrowave synthesisoxide dissociationdopingrare earth ionsupconversionThe authors also acknowledge funding from the European Commission through the projects 1D-NEON (H2020-NMP-2015, grant 685758-21D). The work was also partially funded by the Nanomark collaborative project between INCM (Imprensa Nacional-Casa da Moeda) and CENIMAT/i3N. P.A. Carvalho acknowledges support from the Research Council of Norway through grants 275752 and 197405/F50.The present study reports the production of upconverter nanostructures composed by a yttrium oxide host matrix co-doped with ytterbium and europium, i.e., Y2O3:Yb3+/Eu3+. These nanostructures were formed through the dissociation of yttrium, ytterbium and europium oxides using acetic, hydrochloric and nitric acids, followed by a fast hydrothermal method assisted by microwave irradiation and subsequent calcination process. Structural characterization has been carried out by X-ray diffraction (XRD), scanning transmission electron microscopy (STEM) and scanning electron microscopy (SEM) both coupled with energy dispersive X-ray spectroscopy (EDS). The acid used for dissociation of the primary oxides played a crucial role on the morphology of the nanostructures. The acetic-based nanostructures resulted in nanosheets in the micrometer range, with thickness of around 50 nm, while hydrochloric and nitric resulted in sphere-shaped nanostructures. The produced nanostructures revealed a homogeneous distribution of the doping elements. The thermal behaviour of the materials has been investigated with in situ X-Ray diffraction and differential scanning calorimetry (DSC) experiments. Moreover, the optical band gaps of all materials were determined from diffuse reflectance spectroscopy, and their photoluminescence behaviour has been accessed showing significant differences depending on the acid used, which can directly influence their upconversion performance.CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisUNINOVA-Instituto de Desenvolvimento de Novas TecnologiasRUNNunes, DanielaPimentel, AnaMatias, MarianaFreire, TomasAraujo, A.Silva, FilipeGaspar, PatriciaGarcia, SilviaCarvalho, Patricia A.Fortunato, ElviraMartins, Rodrigo2019-05-27T22:12:13Z2019-02-062019-02-06T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/71014eng2079-4991PURE: 13341161https://doi.org/10.3390/nano9020234info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:33:34Zoai:run.unl.pt:10362/71014Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:35:10.473536Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
title Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
spellingShingle Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
Nunes, Daniela
microwave synthesis
oxide dissociation
doping
rare earth ions
upconversion
title_short Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
title_full Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
title_fullStr Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
title_full_unstemmed Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
title_sort Tailoring Upconversion and Morphology of Yb/Eu Doped Y2O3 Nanostructures by Acid Composition Mediation
author Nunes, Daniela
author_facet Nunes, Daniela
Pimentel, Ana
Matias, Mariana
Freire, Tomas
Araujo, A.
Silva, Filipe
Gaspar, Patricia
Garcia, Silvia
Carvalho, Patricia A.
Fortunato, Elvira
Martins, Rodrigo
author_role author
author2 Pimentel, Ana
Matias, Mariana
Freire, Tomas
Araujo, A.
Silva, Filipe
Gaspar, Patricia
Garcia, Silvia
Carvalho, Patricia A.
Fortunato, Elvira
Martins, Rodrigo
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
DCM - Departamento de Ciência dos Materiais
UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
RUN
dc.contributor.author.fl_str_mv Nunes, Daniela
Pimentel, Ana
Matias, Mariana
Freire, Tomas
Araujo, A.
Silva, Filipe
Gaspar, Patricia
Garcia, Silvia
Carvalho, Patricia A.
Fortunato, Elvira
Martins, Rodrigo
dc.subject.por.fl_str_mv microwave synthesis
oxide dissociation
doping
rare earth ions
upconversion
topic microwave synthesis
oxide dissociation
doping
rare earth ions
upconversion
description The authors also acknowledge funding from the European Commission through the projects 1D-NEON (H2020-NMP-2015, grant 685758-21D). The work was also partially funded by the Nanomark collaborative project between INCM (Imprensa Nacional-Casa da Moeda) and CENIMAT/i3N. P.A. Carvalho acknowledges support from the Research Council of Norway through grants 275752 and 197405/F50.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-27T22:12:13Z
2019-02-06
2019-02-06T00:00:00Z
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://hdl.handle.net/10362/71014
url http://hdl.handle.net/10362/71014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2079-4991
PURE: 13341161
https://doi.org/10.3390/nano9020234
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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