Ultrahigh energy density of polymer nanocomposites containing BaTiO3@TiO2 nanofibers by atomic-scale interface engineering

Xin Zhang; Yang Shen; Qinghua Zhang; Lin Gu; Yuhan Hu; Jiawen Du; Yuanhua Lin; Ce-Wen Nan

doi:10.1002/adma.201404101

Ultrahigh energy density of polymer nanocomposites containing BaTiO3@TiO2 nanofibers by atomic-scale interface engineering

Adv Mater. 2015 Feb 4;27(5):819-24. doi: 10.1002/adma.201404101. Epub 2014 Dec 10.

Authors

Xin Zhang¹, Yang Shen, Qinghua Zhang, Lin Gu, Yuhan Hu, Jiawen Du, Yuanhua Lin, Ce-Wen Nan

Affiliation

¹ School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China.

PMID: 25492492
DOI: 10.1002/adma.201404101

Abstract

Atomic-scale interface engineering in BaTiO3@TO2 nanofibers (TiO2 nano-fibers embedded with BaTiO3 nano-particles) leads to concurrent enhancement of electric displacement and breakdown strength in poly(vinylidene fluoride) (PVDF)-based nanocomposites. An ultrahigh energy density of ≈20 J cm(-3) is achieved with only 3 vol% nanofibers, which is by far the highest discharged energy density of PVDF-based nanocomposites.

Keywords: dielectric; energy density; interfaces; nanocomposites; nanofibers.