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首页> 外文期刊>Journal of Materials Science. Materials in Electronics >Ferroelectric polymeric PVDF films prepared by ultrasonic atomization method
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Ferroelectric polymeric PVDF films prepared by ultrasonic atomization method

机译：超声雾化法制备的铁电聚合物PVDF薄膜

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摘要

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 mu C/cm(2) and coercive field, E-c, of 150 MV/m. The maximum film deposition rate was 85 nm/min at the frequency of 6 MHz.
机译：通过超声雾化制备铁电聚偏二氟乙烯（PVDF）薄膜。通过改变超声雾化器的频率，可以获得PVDF膜的各种厚度和表面形态。通过原子力显微镜（AFM）和铁电测试仪对薄膜进行了表征。结果表明，聚合物PVDF薄膜的厚度控制和表面光滑度有所改善，这对于诸如溶液流延法之类的薄膜沉积来说是至关重要的问题。铁电性能测量表明，电晕充电后的薄膜显示出典型的铁电P-E磁滞回线，剩余极化P-r为5μC / cm（2），矫顽场E-c为150 MV / m。在6MHz的频率下，最大膜沉积速率为85nm / min。

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