Significantly Enhanced Breakdown Strength and Energy Density in Sandwich‐Structured Barium Titanate/Poly(vinylidene fluoride) Nanocomposites

Sandwich-structured BaTiO3/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. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than…