Medidor de energia para laser pulsado

Campos, Jocileide Sales; Santarine, Gerson Antonio

doi:10.1590/s0100-46701997000100009

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…For pure PVDF at this frequency, the value of ε' is 14.3, Figure 4(a). Campos and coworkers found a value of 13, and Rozana found 10 for 1 KHz, proving that our results agree with those from the literature [14,15]. The dopant addition increases ε' by almost 62 % at 1 KHz up to the concentration of 0.8 % in the polymeric matrix.…”

Section: Dielectric Characterizationsupporting

confidence: 92%

Enhancement of Electrical and Optical Properties of Polyvinylidene Fluoride Samples by Cerium Sulfate Addition

Falcão

Amorim

Botero

et al. 2023

J. Compos. Biodegradable Polym.

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In the present work, polyvinylidene fluoride's (PVDF) electrical and optical properties have been studied as a function of cerium sulfate tetrahydrate called Ce(SO4)2. Experimental result shows that the relative percentage of β phase (Fβ%) increases by almost 55 % with Ce(SO4)2 addition in the polymeric matrix. The dielectric permittivity measurements presented an increase, at 1 KHz, of 62% up to 0.8% of Ce(SO4)2 content. This increase was attributed to the Maxwell-Wagner effect. The UV-Vis measurements presented some changes at the UV region due to Ce(SO4)2. The fluorescence measurements showed an enhancement in the fluorescence peak of almost 130 % for the PVDF/Ce(SO4)2 0.8% and a blue shift of the maximum fluorescence intensity. These results show that PVDF/Ce(SO4)2 sample is a potential candidate for optical, photonic, electrical, and electronic applications.

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Section: Dielectric Characterizationsupporting

confidence: 92%