PARRA, DUCLERC F.MARCHINI, LEONARDO G.FELINTO, MARIA C.BRITO, HERMI F.2022-01-312022-01-31PARRA, DUCLERC F.; MARCHINI, LEONARDO G.; FELINTO, MARIA C.; BRITO, HERMI F. Photoluminescent properties of the polyamide /Eu3+ β-diketonate complex for optical application. In: INTERNATIONAL CONFERENCE ON LUMINESCENCE, 19th, July 26-30, 2021, Changchun, China. <b>Abstract...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/32672.http://repositorio.ipen.br/handle/123456789/32672The Eu3+ complex precursor, the polymeric (PA) optical marker and the plastic luminescent films obtained were characterized by infrared spectroscopy (FTIR), X-Ray diffractometry (DRX), emission spectroscopy, and thermogravimetry (TGA). The emission spectra of the Eu3+–tta complex doped in the PA exhibited the characteristic bands arising from the 5D0 → 7FJ transitions (J = 0-4). High values of the Ω2 intensity parameter were obtained, indicating the hypersensitive character of the 5D0 → 7F2 transitions and the Eu3+ ions are in a polarizable chemical environment. The high values of the Ω4 parameter confirm the basicity of the oxygen donor from the polymer. Lifetime measurement suggests that doped Eu3+ ion has higher luminescence efficiency in the film than hydrated complex. The emission quantum efficiencies (η) and the highest value are observed in the system PA:[Eu(tta)3(H2O)2] 5%. The PA-optical marker resulted a luminescent plastic film, with high stability when processing.openAccessResumo de eventos científicos0000-0001-7028-08780000-0002-6481-0155https://orcid.org/0000-0001-7028-0878https://orcid.org/0000-0002-7626-880X