Polymer-ceramic nanocomposites for high energy density applications

Adireddy, Shiva; Puli, Venkata Sreenivas; Lou, Tiffany Jialin; Elupula, Ravinder; Sklare, Samuel C.; Riggs, Brian C.; Chrisey, Douglas B.

doi:10.1007/s10971-014-3573-4

Cited by 33 publications

(12 citation statements)

References 25 publications

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“…However, overall there is no much drastic improvement in energy storage densities for donor-doped ceramics. When compared to polymer nanocomposites, 26,27 and glass-ceramic composites, 28 conventional ceramics have high dielectric constant, however their low dielectric breakdown fields restricting their proper usage. Many research groups are trying to improve dielectric BDS of BTO-based ceramics.…”

Section: Resultsmentioning

confidence: 99%

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics

Puli

Adireddy

et al. 2015

J. Adv. Dielect.

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Polycrystalline La-doped BaTiO 3 (Ba ð1ÀxÞ La x TiO 3 ) [x ¼ 0; 0:0005; 0:001; 0:003] ceramics (denoted as BTO,BLT1,BLT2,BLT3) were synthesized by conventional solid-state reaction method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy. XRD and Raman spectra revealed single-phase tetragonal perovskite crystalline structure. Well-saturated polarization-electric field (P-E) hysteresis loops were observed with the measurement frequency of 50 Hz at room temperature and confirmed ferroelectric nature of these ceramics and a high recoverable electrical energy storage density of 0.350 J/cm 3 with energy efficiency ðnÞ $ 9%, which is useful in energy storage capacitor applications. Dielectric studies revealed anomalies around 415-420 K and near the Curie temperature. The latter is attributed to the ferroelectric to paraelectric phase transition. Better dielectric performances were obtained for La-doped samples sintered at 1350 C for 4 h. Grain growth is inhibited with lanthanum (La) incorporation into the BTO lattice. Room temperature semiconducting behavior with positive temperature coefficient of resistivity (PTCR) behavior at T C is attributed to electron compensation mechanism.

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Section: Resultsmentioning

confidence: 99%

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics

Puli

Adireddy

et al. 2015

J. Adv. Dielect.

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“…These composite materials have many processing advantages including mechanical flexibility and have ability to be molded into complex shapes. Therefore, they can be used in compact electronics …”

Section: Introductionmentioning

confidence: 99%

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Nayak

Khastgir

2018

J of Applied Polymer Sci

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Polydimethylsiloxane (PDMS)/lead zirconate titanate (PbZr0.52Ti0.48O3, PZT)‐based nanocomposites with high dielectric constant (permittivity, k) are prepared through room temperature mixing. The effect of PZT loading on electrical and mechanical properties of the PDMS–PZT composites is extensively studied. It is found that there is significant increase in permittivity with PZT loading and decrease in volume resistivity. All the composites have low dielectric loss compared to permittivity value. It is observed that there is increase in permittivity and decrease in volume resistivity of composites after poling, which is due to the dipolar polarization. It is found that both permittivity (ε′) and alternating current conductivity (σac) are increased with temperature at low frequency (1 Hz) and decreased with temperature at high frequency (1 MHz). The above composites are sensitive to external pressure and can be used as pressure/force sensor. The tensile strength and % elongation at break decreases with PZT loading, which is due to the nonreinforcing behavior of PZT ceramic. PZT particles distribution and dispersion in PDMS matrix are observed through field emission scanning electron microscopy, high resolution transmission electron microscopy, and atomic force microscopy/scanning probe microscopy. Thermal stability of composites increased with the PZT loading which is due to higher thermal stability of PZT particles compared to PDMS matrix. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47307.

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“…The broad hump around 2θ corresponding to 20.3° suggests the presence of β-phase semi crystalline PVDF [18]. and casting for long hours.…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

“…Later, Yamada et al [16] have developed expressions to analyze dielectric, piezoelectric and mechanical behavior of PVDF-PZT composite systems. Some of the common polymer dielectric and energy density properties have been given in Table1 [17][18]. In this report, our aim was to develop large area ferroelectric polymer-multiferroics micro-/nano-composites with intended use in power microelectronics industry.…”

Section: Introductionmentioning

confidence: 99%

“…3 ) and lead-zirconate-titanate particles Pb(Zr 0.52 Ti 0.48 )O 3 (PZT) ( ε~ 400, density~ 7.5 g/cm 3 ) as filler in PVDF polymer matrix (ε~ 8-10, density~ 1.78 g/cm 3 )[18]. We fabricated PVDF-CFO (wt% 80:20 respectively) composite film which showed good ferroelectric behavior and high breakdown field, however, we also need satisfactory dielectric constant to achieve high energy density and for this purpose we added PZT ceramic particles that possess very highdielectric constant.…”

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Electro-mechanical properties of free standing micro- and nano-scale polymer-ceramic composites for energy density capacitors

Singh

Borkar

Singh

et al. 2015

Journal of Alloys and Compounds

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Polymer-ceramic nanocomposites for high energy density applications

Cited by 33 publications

References 25 publications

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics

Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Electro-mechanical properties of free standing micro- and nano-scale polymer-ceramic composites for energy density capacitors

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Polymer-ceramic nanocomposites for high energy density applications

Cited by 33 publications

References 25 publications

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics

Crystal structure, dielectric, ferroelectric and energy storage properties of La-doped BaTiO3 semiconducting ceramics

Polydimethylsiloxane–PbZr0.52Ti0.48O3 nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties

Electro-mechanical properties of free standing micro- and nano-scale polymer-ceramic composites for energy density capacitors

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Polydimethylsiloxane–PbZr_0.52Ti_0.48O₃ nanocomposites with high permittivity: Effect of poling and temperature on dielectric properties