Studies on Electrode Integrated Piezoelectric Polyvinylidene difluoride(PVDF) Fiber

Polyvinylidene difluoride solution dip-coating and a high-voltage poling process is effective at inducing chain reorientation and phase transformation. Moreover, a copper wire external electrode and coated fiber combined to form a piezoelectric device successfully. In addition, a textile-like piezoelectric device comprising of three warps and one weft was fabricated, and the piezoelectric properties of the device were evaluated. The voltage from the polyvinylidene difluoride fiber was increased as the external force was applied. The piezoelectric performance was affected by the presence of external load resistors. Moreover, in the case of the textile-type piezoelectric device, the more warps and weft were connected to each other, the higher was the voltage generated. Consequently, single fiber can be used for piezoelectric devices, moreover, it enables advanced users to have wide application, for example, woven or knitted smart textile-type sensors or micro energy harvesters.

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Studies on Electrode Integrated Piezoelectric Polyvinylidene difluoride(PVDF) Fiber

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