Nanocomposites: Significantly Enhanced Breakdown Strength and Energy Density in Sandwich‐Structured Barium Titanate/Poly(vinylidene fluoride) Nanocomposites (Adv. Mater. 42/2015)

On page 6658, H. Wang and co-workers report a sandwich-structured BaTiO3/poly(vinylidene fluoride) (PVDF) nanocomposite with an ultrahigh energy density of 18.8 J cm−3. The electric field distribution and polarization in this structure can be optimized by adjusting the volume fraction of the ceramic fillers in different layers, resulting in a high breakdown strength and large dielectric polarization simultaneously.