scholarly journals Enhanced dielectric properties and energy storage of the sandwich‐structured poly(vinylidene fluoride‐ co ‐hexafluoropropylene) composite films with functional BaTiO 3 @Al 2 O 3 nanofibres

2019 ◽  
Vol 2 (3) ◽  
pp. 103-108 ◽  
Author(s):  
Jun‐Wei Zha ◽  
Shi‐Cong Yao ◽  
Yan Qiu ◽  
Ming‐Sheng Zheng ◽  
Zhi‐Min Dang
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
Poly Vinylidene Fluoride

The high energy density and efficiency of PVDF-based composites with double-shell Nd-BaTiO3 particles as fillers

2020 ◽  
Vol 13 (06) ◽  
pp. 2051042
Author(s):  
Zhong Yang ◽  
Jing Wang ◽  
Long He ◽  
Chaoyong Deng ◽  
Kongjun Zhu
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
High Energy ◽  
Maximum Energy ◽  
Dielectric Constants ◽  
High Energy Density ◽  
Element Simulation ◽  
Poly Vinylidene Fluoride

Flexible dielectric capacitors are becoming shining stars in modern electronic devices. Ceramic particles with large dielectric constants and benign compatibility are attractive candidates to enhance the energy storage density of pristine polymer capacitors while guaranteeing their flexibility. In this work, double-shell structure of Al2O3 (AO) and dopamine (PDA) were successively coated on the Nd-doped BaTiO3 (NBT) particles and then introduced into the Poly(vinylidene fluoride) (PVDF) matrix. Obvious enhancement in dielectric constants was observed while the dielectric loss remained nearly constant. For the composite films with 1–4[Formula: see text]vol.% NBT@AO@PDA NPs, the maximum energy density of 9.1[Formula: see text]J/cm3 and energy efficiency of 65% was achieved at 430[Formula: see text]MV/m in the sample with 1[Formula: see text]vol.% filling ratio, which are 1.4 and 1.3 times larger than those of pristine PVDF at 450[Formula: see text]MV/m. The finite element simulation reveals the effective relief of the electric field concentration in the composite film induced by the AO and PDA layers. The greater improvement in the energy storage performance could be anticipated if the dispersity of NBT@AO@PDA NPs was further improved.

Large d33 and enhanced ferroelectric/dielectric properties of poly(vinylidene fluoride)-based composites filled with Pb(Zr0.52Ti0.48)O3 nanofibers

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 51302-51307 ◽  
Author(s):  
Jie Chang ◽  
Yang Shen ◽  
Xiangcheng Chu ◽  
Xuehui Zhang ◽  
Yu Song ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
Poly Vinylidene Fluoride

Pb(Zr0.52Ti0.48)O3 (PZT) nanofibers with diameters of 150–200 nm are prepared via electrospinning and used as dielectric fillers in poly(vinylidene fluoride) (PVDF)-based composite films.

Dielectric Properties of Poly(vinylidene fluoride)/PMN-PT Composite Films for Embedded Capacitors

2015 ◽  
Vol 7 (9) ◽  
pp. 776-781 ◽  
Author(s):  
A. K. Batra ◽  
Almuatasim Alomari ◽  
Mary McDaniel ◽  
Kyana McKay ◽  
Marylyn Creer
Keyword(s):  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
Embedded Capacitors ◽  
Poly Vinylidene Fluoride

scholarly journals Dielectric properties of composite based on ferroelectric copolymer of poly(vinylidene fluoride-trifluoroethylene) and ferroelectric ceramics of barium lead zirconate titanate

2017 ◽  
Vol 07 (05) ◽  
pp. 1720003
Author(s):  
A. V. Solnyshkin ◽  
I. L. Kislova ◽  
I. M. Morsakov ◽  
A. N. Belov ◽  
V. I. Shevyakov ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Lead Zirconate Titanate ◽  
Vinylidene Fluoride ◽  
Composite Films ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Zirconate Titanate ◽  
Solvent Cast ◽  
Poly Vinylidene Fluoride ◽  
Frequency Dependences

A study of dielectric properties of composite films on the base of poly(vinylidene fluoride-trifluoroethylene) copolymer P(VDF-TrFE) and ferroelectric ceramics of barium lead zirconate titanate (BPZT) solid solution is presented in this work. The composite films containing up to 50 vol.% of BPZT grains with size [Formula: see text]1[Formula: see text][Formula: see text]m were prepared by the solvent cast method. Frequency dependences of real and imaginary components of the complex permittivity were determined. The concentration dependence of the dielectric constant was discussed.

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