Enhancing functional properties of PVDF-HFP/BZT-BCT polymer-ceramic composites by surface hydroxylation of ceramic fillers

Titania Nanoparticle-Stimulated Ultralow Frequency Detection and High-Pass Filter Behavior of a Flexible Piezoelectric Nanogenerator: A Self-Sustaining Energy Harvester for Active Motion Tracking

“…The morphology of nanoparticulate fillers in the polymer matrix, the presence of agglomeration regions, interface areas, air spaces, and the disparity in the relative permittivity of nanofiller and PVDF-HFP phases are the parameters that are known to have a significant impact on the energy density. 52 The total energy density was once again found to be the highest in the PT-10 nanocomposite film, with a value of 22.3 mJ/cm 3 , which is almost 3 times higher than that of PT-15 (W = 7.87 mJ/cm 3 ). Due to the homogeneous dispersion of the TiO 2 nanofiller with a dense microstructure, the addition of this nanofiller causes the creation of smaller Curie−Weiss domains and increased β-phase crystallinity, most optimally in the case of PT-10.…”

“…The stored energy density ( W rec ), loss density ( W loss ), and total energy density (W) of the films are represented in the radar plot, as shown in Figure c. The morphology of nanoparticulate fillers in the polymer matrix, the presence of agglomeration regions, interface areas, air spaces, and the disparity in the relative permittivity of nanofiller and PVDF-HFP phases are the parameters that are known to have a significant impact on the energy density . The total energy density was once again found to be the highest in the PT-10 nanocomposite film, with a value of 22.3 mJ/cm 3 , which is almost 3 times higher than that of PT-15 ( W = 7.87 mJ/cm 3 ).…”

Dielectric and energy storage properties of surface-modified BaTi0.89Sn0.11O3@polydopamine nanoparticles embedded in a PVDF-HFP matrix

“…3b and c, respectively), suggesting that the surface hydroxylation was accomplished. 34,35 The increasing intensity of the –M–O absorption band, centered between 500 and 650 cm −1 , indicates that the surface powder's functionalization was effective. There is noteworthy observation in the vibrations of the M–O functional groups within the treated BTS 11 samples compared to the pure BTS 11 material.…”

Enhancement of the dielectric energy storage performance of PVDF‐TrFE composite film via core‐shell structured (1‐x)Ba(Ti0.8Zr0.2)O3‐x(Ba0.7Ca0.3)TiO3@TiO2

“…Tang et al 31 successfully obtained BT/P(VDF‐TrFE‐CFE) composites with the energy density of 10.48 J∙cm −3 at the electric field of 300 MV∙m −1 . Dash et al 32 incorporated surface‐hydroxylated BZT‐0.5BCT into PVDF‐HFP to fabricate composite films, which achieved a high energy storage density of 0.728 J cm −3 under an electric field of 750 kV cm −1 by improving the filler particle content. Puli et al 33 fabricated polymer grafted BZT‐BCT nanocomposite which have shown an improved dielectric constant ( ε r ~ 56), a high breakdown field strength (~3 MV cm −1 ) and high‐energy storage density ~22.5 J cm −3 .…”