Piezoelectric Polymers and Their Applications

Bauer, Siegfried; Bauer, F.

doi:10.1007/978-3-540-68683-5_6

Cited by 75 publications

(60 citation statements)

References 34 publications

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“…[7,8,9] We note that high values of the voltage coefficient have been reported for ferroelectret polymers, i.e. soft electroactive films, [10][11][12] but applications are hampered by discharging at elevated temperature. [13] The most widely studied, [14,15] commercially available, [16] polymer is the piezoelectric homopolymer polyvinylidenefluoride (PVDF) and its random copolymer with trifluoroethylene (P(VDF-TrFE) kV.…”

Section: Introductionmentioning

confidence: 99%

Flexible Piezoelectric Touch Sensor by Alignment of Lead‐Free Alkaline Niobate Microcubes in PDMS

Deutz

Mascarenhas

Schelen

et al. 2017

Adv Funct Materials

116

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This state-of-the-art value outperforms bulk piezoelectric ceramics and composites with randomly dispersed particles, and is comparable to the values reported for the piezoelectric polymers PVDF and P(VDF-TrFE). Optimized composite films are incorporated in flexible piezoelectric touch sensors. The high sensitivity is analyzed and discussed. As the fabrication technology is straightforward and easy to implement, applications are foreseen in flexible electronics such wireless sensor networks and biodiagnostics.

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Section: Introductionmentioning

confidence: 99%

Flexible Piezoelectric Touch Sensor by Alignment of Lead‐Free Alkaline Niobate Microcubes in PDMS

Deutz

Mascarenhas

Schelen

et al. 2017

Adv Funct Materials

116

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“…Poly(vinylidene fluoride) (PVDF) and copolymers have the best electroactive performance in the small class of polymers displaying piezo, pyro, and ferroelectricity. These properties are originated from the strong molecular dipoles within the polymer chains [14]. From the four crystal modifications known for PVDF, denoted as α, β, γ and δ, the highest piezo-, pyro-and ferroelectric properties are associated to the β-phase.…”

Section: Introductionmentioning

confidence: 99%

Optimizing piezoelectric and magnetoelectric responses on CoFe₂O₄/P(VDF-TrFE) nanocomposites

Martins

Lasheras

Gutierrez

et al. 2011

J. Phys. D: Appl. Phys.

146

120

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Magnetoelectric nanocomposite films composed of magnetostrictive CoFe 2 O 4 nanoparticles with sizes between 35 and 55 nm embedded in P(VDF-TrFE) have been successfully prepared by a solvent casting method. The ferroelectric, piezoelectric, magnetic and magnetoelectric properties of the nanocomposite and their variation with the wt% of the ferrite filler, thickness of the composite and direction of the applied magnetic field have been investigated. Ferroelectric and piezoelectric properties are improved when small amount of ferrite nanoparticles were added to the polymeric matrix. Magnetic properties vary linearity with ferrite content. The highest magnetoelectric response of 41.3 mV/cmOe was found in the composite with 72wt% when a 2.5 kOe DC field was transversely applied to the sample surface. This value is among the highest reported in two phase particulate polymer nanocomposites. Thickness of the composite has no influence in the magnetoelectric response, allowing tailoring sensor thickness for specific applications. The good value of the magnetoelectric coefficient and the flexibility of the films make these composites suitable for applications in magnetoelectric smart devices.

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“…Since the discovery of its strong piezoelectric activity in 1969 by Kawai [1], poly(vinylidene fluoride) (PVDF) and its copolymers, in particular the copolymers of vinylidene difluoride and trifluoroethylene P(VDF-TrFE) have dominated the science and technology of piezoelectric polymers. There have been a number of contributions including reviews on the structure, properties, and applications of PVDF family ( [2][3][4][5][6][7][8][9][10][11][12] and references therein). Thanks to the high piezoelectric performance without mechanical stretching during processing, P(VDF-TrFE) is currently the most dominant polymer material for ferroelectric thin-film device applications [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonication and other processing conditions on the morphology, thermomechanical, and piezoelectric properties of poly(vinylidene difluoride-trifluoroethylene) copolymer films

et al. 2013

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International audienceThis study is carried out on the effect of processing conditions including preparation methods, ultrasonication, film thickness, and thermal annealing on the thermal, mechanical, and piezoelectric properties of copolymer of poly(vinylidene difluoride-trifluoroethylene) (P(VDF-TrFE)). Free-standing films and films on substrates are prepared by solvent casting and spin-coating, respectively. The results obtained by differential scanning calorimetry show that the Curie transition of the copolymer films was influenced by the preparation methods, with very little difference in the melting transition. The difference was attributed to a less uniform distribution of TrFE comonomer units within the crystalline and amorphous regions of the spin-coating films. However, no effect of the preparation methods on the piezoelectric properties of the films was observed. It is also found that the short ultrasonication, film thickness higher than critical value of crystallization of P(VDF-TrFE) (about 100 nm), and drying before annealing did not have a significant effect on the properties of the films. Surprisingly, the ultrasonication had a clear impact on the relaxations at high temperature of the polymer chains. In addition, this study indicates that a short annealing by 10 min at 140 degrees C was enough to obtain well-crystallized films, which is interesting from the industrial point of view

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Piezoelectric Polymers and Their Applications

Cited by 75 publications

References 34 publications

Flexible Piezoelectric Touch Sensor by Alignment of Lead‐Free Alkaline Niobate Microcubes in PDMS

Flexible Piezoelectric Touch Sensor by Alignment of Lead‐Free Alkaline Niobate Microcubes in PDMS

Optimizing piezoelectric and magnetoelectric responses on CoFe₂O₄/P(VDF-TrFE) nanocomposites

Effect of ultrasonication and other processing conditions on the morphology, thermomechanical, and piezoelectric properties of poly(vinylidene difluoride-trifluoroethylene) copolymer films

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Piezoelectric Polymers and Their Applications

Cited by 75 publications

References 34 publications

Flexible Piezoelectric Touch Sensor by Alignment of Lead‐Free Alkaline Niobate Microcubes in PDMS

Flexible Piezoelectric Touch Sensor by Alignment of Lead‐Free Alkaline Niobate Microcubes in PDMS

Optimizing piezoelectric and magnetoelectric responses on CoFe2O4/P(VDF-TrFE) nanocomposites

Effect of ultrasonication and other processing conditions on the morphology, thermomechanical, and piezoelectric properties of poly(vinylidene difluoride-trifluoroethylene) copolymer films

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Optimizing piezoelectric and magnetoelectric responses on CoFe₂O₄/P(VDF-TrFE) nanocomposites