Effects of gamma radiation on the photoluminescence properties of polycarbonate matrices doped with terbium complex
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Radiation Physics and Chemistry
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Luminescent films containing terbium complex [Tb(acac)3(H2O)3] (acac ¼ acetylacetonate) doped into a
polycarbonate (PC) matrix were prepared and irradiated at low-dose gamma radiation with ratio of 5
and 10 kGy. The PC polymer was doped with 5% (w/w) of the Tb3+ complex. The thermal behavior was
investigated by utilization of differential scanning calorimetry (DSC) and thermogravimetry analysis
(TGA). Changes in thermal stability due to the addition of doping agent into the polycarbonate matrix.
Based on the emission spectra of PC:5% Tb(acac)3 film were observed the characteristic bands arising
from the 5
D4-7
FJ transitions of Tb3+ ion (J ¼ 0–6), indicating the ability to obtain the luminescent films.
Doped samples irradiated at low dose of gamma irradiation showed a decrease in luminescence
intensity with increasing of the dose.
Como referenciar
FORSTER, P.L.; PARRA, D.F.; KAI, J.; FERMINO, D.M.; BRITO, H.F.; LUGAO, A.B. Effects of gamma radiation on the photoluminescence properties of polycarbonate matrices doped with terbium complex. Radiation Physics and Chemistry, v. 79, n. 3, p. 347-349, 2010. DOI: 10.1016/j.radphyschem.2009.08.026. Disponível em: http://repositorio.ipen.br/handle/123456789/4746. Acesso em: 20 Mar 2026.
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.