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Significantly Enhanced Breakdown Strength and Energy Density in Sandwich‐Structured Barium Titanate/Poly(vinylidene fluoride) Nanocomposites
Author(s) -
Wang Yifei,
Cui Jin,
Yuan Qibin,
Niu Yujuan,
Bai Yuanyuan,
Wang Hong
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201503186
Subject(s) - materials science , nanocomposite , fluoride , composite material , barium titanate , dielectric , casting , ceramic , polarization (electrochemistry) , inorganic chemistry , chemistry , optoelectronics
Sandwich‐structured BaTiO 3 /poly(vinylidene fluoride) (PVDF) nanocomposites are successfully prepared by the solution‐casting method layer by layer. They possess both high breakdown strength and large dielectric polarization simultaneously. An ultra‐high energy‐storage density of 18.8 J cm −3 can be achieved by adjusting the volume fraction of ceramic fillers: this is almost three times larger than that of pure PVDF.