PMMA or PVDF films blended with β-diketonate tetrakis EuIII or TbIII complexes used as downshifting coatings of near-UV LEDs

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual de Londrina (UEL)-
Autor(es): dc.creatorBeltrame, Ariane C. F.-
Autor(es): dc.creatorBispo-Jr, Airton G.-
Autor(es): dc.creatorCanisares, Felipe S. M.-
Autor(es): dc.creatorFernandes, Ricardo V.-
Autor(es): dc.creatorLaureto, Edson-
Autor(es): dc.creatorLima, Sergio A. M.-
Autor(es): dc.creatorPires, Ana M.-
Data de aceite: dc.date.accessioned2025-08-21T19:14:54Z-
Data de disponibilização: dc.date.available2025-08-21T19:14:54Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d3sm00239j-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247260-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247260-
Descrição: dc.descriptionLuminescent LnIII complexes incorporated in polymeric films exhibit narrow emission bands and absorption within the near-UV/blue spectral range, and enhanced phostability, which qualify them to be explored for solid-state lighting. Herein, (C26H56N)[Eu(dbm)4] and Na[Tb(acac)4], (C26H56N+ = didodecyldimethylammonium, dbm− =1,3-diphenyl-1,3-propanedionate, acac− = acetylacetonate), were dispersed in PMMA or PVDF films to protect them from degradation, and the obtained blends were applied as downshifting coatings on near-UV emitter LEDs. Upon such excitation, both EuIII and TbIII complexes emit red or green light with absolute emission quantum yields of 6.4 and 99%, respectively. The complex amount within films influences the photophysical parameters due to multiphotonic deactivation, and formation of agglomerates. For the PMMA-based LED prototypes, the LnIII emission is well-observed while for the PVDF ones, only a poor LnIII emission is detected due to their opacity. Therefore, the PMMA-based systems are better candidates to be used as luminescent coatings of near-UV LEDs for solid-state lighting.-
Descrição: dc.descriptionSao Paulo State University (Unesp) Institute of Biosciences Humanities and Exact Sciences, SP-
Descrição: dc.descriptionSao Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionSao Paulo State University (Unesp) Institute of Chemistry, SP-
Descrição: dc.descriptionDepartment of inorganic chemistry Institute of Chemistry University of Campinas (Unicamp), SP-
Descrição: dc.descriptionState University of Londrina (UEL), PR-
Descrição: dc.descriptionSao Paulo State University (Unesp) Institute of Biosciences Humanities and Exact Sciences, SP-
Descrição: dc.descriptionSao Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionSao Paulo State University (Unesp) Institute of Chemistry, SP-
Idioma: dc.languageen-
Relação: dc.relationSoft Matter-
???dc.source???: dc.sourceScopus-
Título: dc.titlePMMA or PVDF films blended with β-diketonate tetrakis EuIII or TbIII complexes used as downshifting coatings of near-UV LEDs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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