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TitleIncreasing X-ray to visible transduction performance of Gd2O3:Eu3+PVDF composites by PPO/POPOP addition
Author(s)Oliveira, J.
Martins, P.M.
Martins, P.
Correia, V.
Rocha, J. G.
Lanceros-Méndez, S.
KeywordsA. Polymer-matrix composites (PMCs)
B. Electrical properties
B. Optical properties/techniques
E. Casting
Polymer-matrix composites (PMCs)
Electrical properties
Optical properties/techniques
Issue date2016
JournalComposites Part B: Engineering
CitationOliveira, J., Martins, P. M., Martins, P., Correia, V., Rocha, J. G., & Lanceros-Mendez, S. (2016). Increasing X-ray to visible transduction performance of Gd2O3:Eu3+PVDF composites by PPO/POPOP addition. Composites Part B-Engineering, 91, 610-614. doi: 10.1016/j.compositesb.2016.02.017
Abstract(s)Polymer based scintillator composites have been produced by combining poly(vinylidene fluoride (PVDF) and Gd2O3:Eu3+ scintillator nanoparticles. Additionally 2,5 dipheniloxazol (PPO) and (1,4-bis (2-(5-phenioxazolil))-benzol (POPOP) were introduced in the polymer matrix in order to improve visible light yield under x-ray irradiation. It is shown that addition of PPO and POPOP has no influence on the polymer structure, increases dielectric constant from ~7 to ~14, which is suitable for improving energy resolution, and increases in 40% the overall transduction performance of the composite without sacrificing its homogeneity and transparency. Thus, the developed Gd2O3:Eu3+/PPO/POPOP/PVDF composites are appropriate for large area X-ray radiation detectors.
AccessRestricted access (UMinho)
Appears in Collections:CDF - FCD - Artigos/Papers (with refereeing)

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