Tuneable luminescence in multicolour films
Carregando...
Data
Data de publicação
2010
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
RARE EARTH CONFERENCE 2010
Exportar
Resumo
Trivalent Rare Earth (RE3+) β-diketonate complexes and polymethylmetacrylate (PMMA) have been widely employed in the productions of luminescent materials. In this work, preparation, characterization and photoluminescence studies for a series of stand-free polymer thin films incorporating RE3+-β-diketonate complexes into PMMA were reported. The PMMA matrix not only immobilizes the luminescent RE3+ species via physical and chemical interactions, but also operates as co-sensitizer and enhances the characteristic monochromatic emissions arising from the 4f–4f intraconfigurational transitions of the RE3+ ions. Furthermore, it was observed colour-tuneable luminescence with the polymeric systems. Therefore, they are potentially attractive for the production of advanced photonic applications such as multicolour anti-falsification optical markers, λex.= 254 nm full range UV sensors etc. Moreover, the observation of intermolecular energy transfer from the emitter level (5D4) of Tb3+ ions to the triplet state (T1) of the Eu3+ species was unprecedented in literature.
Como referenciar
KAI, JIANG; NUNES, LUIZ A.O.; FELINTO, MARIA C.F.C.; MALTA, OSCAR L.; BRITO, HERMI F. Tuneable luminescence in multicolour films: selective sensitization of rare earth 'beta'-diketonate complexes doped PMMA films. In: RARE EARTH CONFERENCE 2010, 2010. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/22389. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.