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Energy harvesting using hybridization of dielectric nanocomposites and electrets
Author(s) -
Belhora Fouad,
Hajjaji Abdelowahed,
Mazroui M'hammed,
El Fatnani Fatima Zahra,
Rjafallah Abdelkader,
Guyomar Daniel
Publication year - 2015
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3487
Subject(s) - electret , electrostriction , materials science , piezoelectricity , polyurethane , nanocomposite , energy harvesting , dielectric , polymer , composite material , polarization (electrochemistry) , electroactive polymers , optoelectronics , power (physics) , thermodynamics , chemistry , physics
Electrostrictive polymers have been investigated as electroactive materials for electromechanical energy harvesting. This kind of material is isotope, i.e. there is no permanent polarization compared with piezoelectric material, so in order to ensure its polarization and scavenging energy, the electrostrictive polymers need necessarily an application of a static field. To avoid this problem, we used the hybridization of electrostrictive polymer with electret. The present work aims an analytical modeling for predicting the power convert when the material was mechanically excited. The study was carried out on polyurethane and terpolymer [P(VDF–TrFE–CFE)] films, either without filler or filled with carbon nanopowder. Experimental measurements of the harvested power showed a good agreement with the theoretical behavior predicted by the proposed model. It was also shown that the incorporation of nanofillers increased the power harvested from 5.22 · 10 −2 to 1.498 · 10 −1 μW cm −3 and from 6.87 · 10 −1 to 1.76 μW cm −3 in polyurethane and in the terpolymer, respectively. Copyright © 2015 John Wiley & Sons, Ltd.