Table 3.

The dielectric constant (${\epsilon }_r$), the Young’s modulus (Y), the M₃₁ electrostrictive coefficient, and the power density for the synthesized P(VDF-HFP)/ZnO composites nanofibers, shown with P(VDF-TrFE-CFE) composites films included for comparison.

Sample (Nanofibers)	${\mathit{\epsilon }}_{\mathit{r}}$ 20 Hz	Y (MPa)	M31 (20 Hz) (×10−18) (m2/V2)	Power Density (nW/cm3)
P(VDF-HDP) Pure	1.31	4.8	3.19	500.00
P(VDF-HFP)/ZnO 5 wt%	1.37	5.0	3.73	605.00
P(VDF-HFP)/ZnO 10 wt%	1.87	5.1	4.05	781.25
P(VDF-HFP)/ZnO 15 wt%	2.08	5.2	4.51	937.50
P(VDF-HFP)/ZnO 20 wt%	2.20	5.3	4.58	1201.25

At 20 Hz, E = 3 V/μm, strain rate 1 S⁻¹ in clamp–clamp setup.