Nanocomposites with BaTiO₃–SrTiO₃ hybrid fillers exhibiting enhanced dielectric behaviours and energy-storage densities

Abstract

SrTiO3 nanowires were hydrothermally grafted onto BaTiO3 nanoparticles and BaTiO3–SrTiO3-P(VDF-HFP) composites exhibited enhanced dielectric properties.

High Energy Storage Density and Impedance Response of PLZT2/95/5 Antiferroelectric Ceramics

“…For example, the J reco value for the PLZT2/95/5 ceramics was varied from 0.28 to 0.83 J/cm 3 , and the corresponding η value was varied from 40% to 70% as the electric field increases from 30 to 55 kV/cm. Under the same conditions of applied electric field, the experimental data showed much higher values of J reco than those reported in BaTiO 3 -SrTiO 3 composites, BaSrTiO 3 ceramics, and BaTiO 3 ceramics [33,34,35]. However, owing to the fact that these measurements are done by immersing the ceramics in silicone oil which breaks down at temperatures beyond 200 °C, P-E data were taken from 30 to 200 °C (which was less than the transition temperature).…”

A facile one step conversion of the sub-micrometer to uniform nanopowder in tetragonal BaTiO3 via a surface active etching salt

“…[1][2][3]. To date, the nanoscale of BaTiO 3 has created increasing interest for the design of high-k gate dielectric ceramicpolymer nanocomposite films in flexible nanogenerators and flexible capacitors for energy storage applications [4][5][6][7][8].…”

Hydrothermal synthesis of dendritic BaTiO3 ceramic powders and its application in BaTiO3/P(VDF‐TrFE) composites

“…Therefore, both breakdown strength and dielectric constant are demand for a high energy density of the composites. Generally, dielectric composites is rationalized by combining high E b of the polymer with high ε r of ceramic fillers, where, the polymers are poly(vinylidene fluoride) (PVDF), PVDF‐based copolymers, namely, P(VDF‐TrFE), P(VDF‐HFP), and P(VDF‐CTFE), etc., and ceramic fillers are BaTiO 3 , CaCu 3 Ti 4 O 12 , and Ba 1−x Sr x TiO 3 , etc . Generally, Maxwell‐Wagner mixing rule is employed to predict the effective constant for ceramic‐polymer composites, which is demonstrated as Equation .…”

“…Generally, dielectric composites is rationalized by combining high E b of the polymer with high e r of ceramic fillers, where, the polymers are poly(vinylidene fluoride) (PVDF), PVDF-based copolymers, namely, P(VDF-TrFE), P(VDF-HFP), and P (VDF-CTFE), etc., and ceramic fillers are BaTiO 3 , CaCu 3-Ti 4 O 12 , and Ba 1Àx Sr x TiO 3 , etc. [5][6][7] Generally, Maxwell-Wagner mixing rule is employed to predict the effective constant for ceramic-polymer composites, which is demonstrated as Equation (2).…”