Abstract
Ferroelectric poly (vinylidene fluoride) (PVDF) films were prepared by ultrasonic atomization. Various thickness and surface morphology of PVDF films were obtained by changing the frequency of an ultrasonic atomizer. The films were characterized by atomic force microscope (AFM) and ferroelectric tester. The results showed that there were some improvements in the thickness control and surface smoothness of polymeric PVDF films, which are critical problems for film deposition such as solution casting method. Ferroelectric properties measurement indicated that the films after corona charging displayed typical ferroelectric P–E hysteresis loops, giving a remanent polarization, P r, of 5 μC/cm2 and coercive field, E c, of 150 MV/m. The maximum film deposition rate was 85 nm/min at the frequency of 6 MHz.
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The authors are grateful to the National Science Fund of China Distinguished Young Scholars for its financial support through No. 60425101.
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Ye, Y., Jiang, Y., Wang, T. et al. Ferroelectric polymeric PVDF films prepared by ultrasonic atomization method. J Mater Sci: Mater Electron 17, 631–635 (2006). https://doi.org/10.1007/s10854-006-0010-7
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DOI: https://doi.org/10.1007/s10854-006-0010-7