Europium-doped Zn-Al-LDH intercalated with 4-biphenylcarboxylate anion and undoped Zn-Al-LDH intercalated with its anionic Eu(III) complex: Structural and UV or X-ray excited luminescence properties

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFederal Institute of São Paulo-
Autor(es): dc.creatorSaska Romero, João Henrique-
Autor(es): dc.creatorSaito, Gustavo Pereira-
Autor(es): dc.creatorCagnin, Flávia-
Autor(es): dc.creatorCebim, Marco Aurélio-
Autor(es): dc.creatorDavolos, Marian Rosaly-
Data de aceite: dc.date.accessioned2025-08-21T16:09:29Z-
Data de disponibilização: dc.date.available2025-08-21T16:09:29Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.optmat.2021.111703-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233987-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233987-
Descrição: dc.descriptionUndoped and doped layered double hydroxides (LDH) were obtained by coprecipitation and the bca (biphenyl-4-carboxylate) anion or [Eu(bca)4]- intercalation by solvothermal post treatment. The three systems, (i) [Zn2Al1-xEux]NO3-LDH x = 0.1 at.%, (ii) [Zn2Al1-xEux]bca-LDH x = 0.1 at.% and (iii) [Zn2Al][Eu(bca)4]-LDH are compared by XRD, FTIR, Zeta Potential, PLS and XEOL characterizations. The luminescent properties are exciting. The bca intercalation/coordination increases the luminescence intensity of the doped LDH because decreases the –OH groups, luminescence suppressors by multi-phonon process, and increases the ligand to Eu3+ energy transfer processes. The luminescence in the (iii) system is less intense than the (ii) system but more intense than (i) system and the Eu3+ symmetry in the intercalated complex is different from the free one. X-ray excited optical luminescence occurs on all systems with different radiation damage. The intense luminescence remarks the Eu3+ as an excellent spectroscopic probe, as dopant in the brucite-like layers and in the interlayer space as anion complex. Finally, the LDH host structure acts as a protective environment for the luminescence properties of intercalated species. Thus, LDH systems become potential candidates combining the inorganic and organic properties for promising emission materials.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSão Paulo State University (Unesp) Institute of Chemistry Luminescent Materials Laboratory-
Descrição: dc.descriptionFederal Institute of São Paulo-
Descrição: dc.descriptionSão Paulo State University (Unesp) Institute of Chemistry Luminescent Materials Laboratory-
Descrição: dc.descriptionCNPq: 140400/2010-9-
Descrição: dc.descriptionCNPq: 140936/2013-0-
Descrição: dc.descriptionFAPESP: 2007/55332-7-
Descrição: dc.descriptionCNPq: 313029/2017-2-
Idioma: dc.languageen-
Relação: dc.relationOptical Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEuropium(III)-
Palavras-chave: dc.subjectLayered double hydroxides-
Palavras-chave: dc.subjectLDH polytypes-
Palavras-chave: dc.subjectRadiation damage-
Palavras-chave: dc.subjectSpectroscopic probe-
Palavras-chave: dc.subjectXEOL-
Título: dc.titleEuropium-doped Zn-Al-LDH intercalated with 4-biphenylcarboxylate anion and undoped Zn-Al-LDH intercalated with its anionic Eu(III) complex: Structural and UV or X-ray excited luminescence properties-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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