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The authors report the finding of large enhancement in the electric energy density and electric displacement level in nanocomposites of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) relaxor ferroelectric polymer/ZrO2 nanoparticles. Through the interface effect, the presence of the nanoparticles (with only 1.6vol% of ZrO2 nanoparticles in the composite) raises the maximum electric displacement D from 0.085C∕m2 under 400MV∕m in the neat terpolymer to more than 0.11C∕m2 under 300MV∕m in the nanocomposites. Consequently, a high energy density of 10.5J∕cm3 can be achieved under a lower field (300MV∕m) in the nanocomposites compared with the neat terpolymer.
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Chu et al. (2007) studied this question.
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