Enhanced piezoelectric performance from carbon fluoropolymer nanocomposites

Baur, Cary; DiMaio, Jeffrey R.; McAllister, Elliot; Hossini, Reza; Wagener, Earl H.; Ballato, John; Priya, Shashank; Ballato, A.; Smith, Dennis W.

doi:10.1063/1.4768923

Cited by 43 publications

(23 citation statements)

References 43 publications

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“…The value of composites is 1.170 lC/cm 2 , when the concentration of BCZT particles reaches 20 vol %. 34,35 The conclusion is in agreement with TSDC measurement. On the other hand, it may be related to the polarization of SC at interfaces between BCZT and PVDF.…”

Section: Hysteresis Testingsupporting

confidence: 86%

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Liu

Lin

et al. 2017

J of Applied Polymer Sci

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The morphotropic phase boundary composition 47(Ba 0.7 Ca 0.3 )TiO 3 -0.53Ba(Zr 0.2 Ti 0.8 )O 3 (calcium barium zirconate titanate, BCZT) were doped in poly(vinylidene fluoride) matrix by solution casting method. The effect of BCZT particles on polarization characteristics of composite films were investigated through dielectric spectra, hysteresis, and thermally stimulated discharge current measurements. It reveals that relative dielectric constant, remnant polarization, and energy storage density gradually increase and reach the maximum value with 39 at 100 Hz, 1.17 lC/cm 2 , and 3.69 J/cm 3 at the concentration of 20 vol % BCZT. The Gaussian method was employed to decompose thermally stimulated discharge current composite peaks and an approximate model was used to analyze the activation energy levels of these films. The results indicated that the introduction of BCZT is effective for the charge carrier traps and activation energy distribution in the relaxation process of composite films. The decreased molecular movements, and increased interfaces formed between the BCZT grains and the poly(vinylidene fluoride) matrix may be responsible for these performances. And a new relaxation peak appeared at about 370 K in composites when BCZT concentration exceeded 20 vol %, which was considered to be caused by the ferroelectric-paraelectric phase transition of BCZT.

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Section: Hysteresis Testingsupporting

confidence: 86%

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Liu

Lin

et al. 2017

J of Applied Polymer Sci

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“…BaTiO 3 [7] or carbon nanotubes [8], and the d 33 of PVDF doubled upon addition of small quantities of carbon fullerenes and single-walled carbon nanotubes [9]. When the filler is a ferroelectric ceramic, interesting opportunities open up for the fabrication of composites with tuned pyroelectric and piezoelectric properties [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of interfacial interactions on the electromechanical response of poly(vinylidene fluoride-trifluoroethylene)/BaTiO3 composites and its time dependence after poling

Vacche

Leterrier

Michaud

et al. 2015

Composites Science and Technology

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“…These concerns must be settled before the energy harvesters can be made completely reliable and can be used replace the conventional batteries. For this we can use various new materials like PMN-PT Crystals, xPb (Mg 1/3 Nb 2/3 ) O 3 -(1-x) PbTiO 3 [27] and lead free piezoelectric materials [28], [29], [30], [31] and check their temperature sensitivity.…”

Section: Discussionmentioning

confidence: 99%

A study of variation in output power of piezoelectric mems EH with change in temperature

Singh

Sharma

Agrawal

et al. 2015

2015 2nd International Conference on Recent Advances in Engineering &Amp; Computational Sciences (RAECS)

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Ongoing research has made possible for electronic devices to operate only at a few micro-watts. Hence we have a possibility of making self-sustainable devices, if only some mechanism can be developed to generate the power within these devices. Piezoelectric mems are one of such devices that harvest energy from ambient vibrations and the energy harvested from these are quite sufficient for sustaining various electronic devices for a very long time. Hence they are capable of replacing the batteries. But before that we need to ensure that these Energy Harvesters (EH) are completely reliable. There are various factors that can affect the power generated by these devices. Also the power generated by these devices is very less hence a very small change in power can create performance issues. Therefore these parameters and their effect in output power should be studied very carefully. In this work the analysis of the variation in output power of a piezoelectric mems energy harvester (having an active area of just 0.6mm 2 and an effective volume of 3.69x10 -11 m 3 ) is done with change in temperature using a non -linear modeling. This modeling of the effect of temperature determines the extent of sensitivity of the device. The materials used in this work for analysis is PZT -5H. The results shows that with increase in temperature from -15 degree Celsius to 60 degree Celsius there is an approximate 16 % decrease in the peak output power.

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Enhanced piezoelectric performance from carbon fluoropolymer nanocomposites

Cited by 43 publications

References 43 publications

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Polarization and space charge performance in PVDF with MPB composition BCZT doped composite films

Effect of interfacial interactions on the electromechanical response of poly(vinylidene fluoride-trifluoroethylene)/BaTiO3 composites and its time dependence after poling

A study of variation in output power of piezoelectric mems EH with change in temperature

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