Fig. 1: Design and fabrication of the BUE-PVDF films. | Nature Communications

Fig. 1: Design and fabrication of the BUE-PVDF films.

From: Ultra-high electrostriction and ferroelectricity in poly (vinylidene fluoride) by ‘printing of charge’ throughout the film

Fig. 1

A The basic process of EHD printing with the Z-shape track on the substrate and the scheme of the BUE structure with evenly distributed charge and porosities. B The XRD pattern of 14 wt% PVDF in NMP under different voltages from 3 kV to 6 kV. C The SEM image of the printed PVDF samples with its ink track pattern. D Zoomed-in views of the gap and track area around the ink track. The SEM images of the printed PVDF samples with even higher magnification show the pore distribution within the gap area (E) and track area (F), respectively.

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