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

Yifei Wang; Jin Cui; Qibin Yuan; Yujuan Niu; Yuanyuan Bai; Hong Wang

doi:10.1002/adma.201503186

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

Adv Mater. 2015 Nov;27(42):6658-63. doi: 10.1002/adma.201503186. Epub 2015 Sep 25.

Authors

Yifei Wang¹, Jin Cui¹, Qibin Yuan¹, Yujuan Niu¹, Yuanyuan Bai¹, Hong Wang¹

Affiliation

¹ State Key Laboratory for Mechanical Behavior of Materials and Electronic Materials Research Laboratory, Xi'an Jiaotong University, Xi'an, 710049, China.

PMID: 26403222
DOI: 10.1002/adma.201503186

Abstract

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.

Keywords: dielectrics; energy density; nanocomposites; sandwich structure.