Topography images of the pureP(VDF-TrFE) copolymer (a) and P(VDF-TrFE) + 50 PBZT composite (b) films.
Topography (a), vertical PFM (b), and lateral PFM images (c) of the composite P(VDF-TrFE) + 50 BPZT film. (d) Vertical (open circles) and lateral (blue line) PFM signal profiles across the interface between a BPZT particle (perimeter of the particle is shown by the grey line in Figs. 2(a)–2(c) ) and the copolymer matrix along the line shown in the panels band c. The solid line (red) shows the best fit of the vertical PFM signal by Eq. (1) .
Scheme of 2D-stressed region in PVDF (dashed contour) in dependence on the distance from the BPZT ceramic inclusions (red circles).
Polarization (a) and susceptibility (b) profiles across the PVDF/BPZT boundary. Vertical (c) and lateral (d) piezoelectric response profiles across the PVDF/BPZT boundary calculated vs. relative distance for different probe sizes (labels near the curves), where nm and , , and .
LGD parameters of P(VDF-TrFE) 70/30.
Free energy parameters for bulk ferroelectric PbZr1−xTixO3 at 25 °C (from Refs. 58 and 59 ).
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