Method for Inkjet-printing PEDOT:PSS polymer electrode arrays on piezoelectric PVDF-TrFE fibers.
Method for Inkjet-printing PEDOT:PSS polymer electrode arrays on piezoelectric PVDF-TrFE fibers.
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DOI：
10.1109/jsen.2021.3071321
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发表时间：
2021-12
影响因子：
4.3
通讯作者：
Zhang JXJ
中科院分区：
文献类型：
--
作者：
Closson A;Richards H;Xu Z;Jin C;Dong L;Zhang JXJ
我们提出了一种将导电聚合物印刷到 P(VDF-TrFE) 纳米纤维上以创建全聚合物压电器件的方法。喷墨打印对于柔性电子产品的快速原型制作来说是一种极具吸引力的制造方法，但迄今为止在开发基于 P(VDF-TrFE) 纳米纤维的设备方面的应用有限。我们已经展示了一种填充压电纳米纤维基质内空隙空间的方法，以允许水性墨水的喷墨打印，同时避免通常导致电气短路的泄漏，并且不会显着损失电压输出。这是使用稀释的 PDMS 溶液和市售导电墨水完成的。 1 cm2 器件的冲击灵敏度为 254 mV/N，弯曲灵敏度也为 254 mV/N。该设备被证明当放置在颈动脉和桡动脉表面时能够检测呼吸和脉搏率。使用这些技术，可以以阵列形式完成柔性压电传感，如在足部运动传感中的应用所示。
We present a method for printing conductive polymers onto P(VDF-TrFE) nanofibers to create all-polymer piezoelectric devices. Inkjet printing is an attractive fabrication approach for rapid prototyping of flexible electronics, but until now with limited applications in developing P(VDF-TrFE) nanofiber-based devices. We have demonstrated an approach to infill the void space within a piezoelectric nanofibrous matrix to allow for the inkjet printing of aqueous inks while avoiding leakage that typically leads to electrical shorting and without significant loss of voltage output. This was done using a diluted PDMS solution and a commercially available conductive ink. The 1 cm2 devices showed a 254 mV/N sensitivity to impact as well as a sensitivity to bending. The device was shown to be able to detect breathing and pulse rate when placed superficially to the carotid and radial arteries. Using these techniques, flexible piezoelectric sensing can be done in an array format, shown with applications in foot movement sensing.