fig16

Figure 16. (A and B) The dielectric permittivity and loss tangent measured at 1 kHz^[179]. Reproduced from Ref.^[179] with open access from Wiley; (C) Dielectric properties of BTO@rGO/PVDF nanocomposites^[180]. Reproduced from Ref.^[180] with permission from the Royal Society of Chemistry; (D) Dielectric breakdown strength and dielectric constant (at 10 kHz) of PVDF-2 wt% CB, PVDF-2 wt% MWCNT, PVDF-2 wt% SWCNT, PVDF-2 wt% rGO, and PVDF-2 wt% graphite films^[182]. Reproduced from Ref.^[182] with permission from the American Chemical Society. BTO: BaTiO₃; BT: BaTiO₃; PVDF: polyvinylidene fluoride; rGO: reduced graphene oxide; CB: carbon black; MWCNT: multi-walled carbon nanotubes; SWCNT: single-walled carbon nanotubes.