Journal
COMPOSITES PART B-ENGINEERING
Volume 72, Issue -, Pages 130-136Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.12.001
Keywords
Polymer-matrix composites (PMCs); Smart materials; Electrical properties
Funding
- FEDER through the COMPETE Program
- Portuguese Foundation for Science and Technology (FCT) [PEST-C/FIS/UI607/2011, NANO/NMed-SD/0156/2007, PTDC/CTM-NAN/112574/2009]
- COST Action [MP1003]
- FCT [SFRH/BD/66930/2009, SFRH/BPD/63148/2009, SFRH/BPD/97739/2013, SFRH/BPD/98109/2013]
- Fundação para a Ciência e a Tecnologia [PTDC/CTM-NAN/112574/2009, NANO/NMed-SD/0156/2007] Funding Source: FCT
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The energy harvesting efficiency of poly(vinylidene fluoride-trifluoroethylene) spin coated films and its nanocomposites with piezoelectric BaTiO3 have been investigated as a function of ceramic filler size and content. It is found that the best energy harvesting performance of similar to 0.281 mu W is obtained for the nanocomposite samples with 20% filler content of 10 nm size particles and for 5% filler content for the 100 and 500 nm size fillers. For the larger filler average sizes, the power decreases for filler contents above 5% due to increase of the mechanical stiffness of the samples. Due to the similar dielectric characteristics of the samples, the performance is mainly governed by the mechanical response. The obtained power values, easy processing and the low cost and robustness of the polymer, allow the implementation of the material for micro and nanogenerator applications. (C) 2014 Elsevier Ltd. All rights reserved.
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