Ferroelectric polymer-ceramic composite thick films for energy storage applications | Zendy

Paritosh Singh | Zendy; Hitesh Borkar | Zendy; Bhanu Pratap Singh | Zendy; Vidya Nand Singh | Zendy; Ashok Kumar | Zendy

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Ferroelectric polymer-ceramic composite thick films for energy storage applications

Author(s) -

Paritosh Singh,

Hitesh Borkar,

Bhanu Pratap Singh,

Vidya Nand Singh,

Ashok Kumar

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4892961

Subject(s) - materials science , polyvinylidene fluoride , composite material , ferroelectricity , dielectric , ceramic , composite number , polymer , energy storage , ferroelectric ceramics , sintering , polarization (electrochemistry) , optoelectronics , power (physics) , physics , quantum mechanics , chemistry

We have successfully fabricated large area free standing polyvinylidene fluoride -Pb(Zr0.52Ti0.48)O3 (PVDF-PZT) ferroelectric polymer-ceramic composite (wt% 80–20, respectively) thick films with an average diameter (d) ∼0.1 meter and thickness (t) ∼50 μm. Inclusion of PZT in PVDF matrix significantly enhanced dielectric constant (from 10 to 25 at 5 kHz) and energy storage capacity (from 11 to 14 J/cm3, using polarization loops), respectively, and almost similar leakage current and mechanical strength. Microstructural analysis revealed the presence of α and β crystalline phases and homogeneous distribution of PZT crystals in PVDF matrix. It was also found that apart from the microcrystals, well defined naturally developed PZT nanocrystals were embedded in PVDF matrix. The observed energy density indicates immense potential in PVDF-PZT composites for possible applications as green energy and power density electronic elements

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