Abstract
We developed all polymer piezoelectric film which consists of polyethylene terephthalate (PET) film substrate, conductive polymer poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) electrodes, and polyvinylidene difluoride (PVDF) piezoelectric film in order to achieve the low resonance frequency of energy harvesting device. Existing piezoelectric films have been deposited on rigid silicon or inorganic materials which lead to high resonance frequency and low efficiency of energy generating under low frequency of human or animal motions. Therefore, we developed all polymeric piezoelectric films on very soft PET films. To deposit PVDF film on PEDOT:PSS coated PET, low temperature coating process using low boiling temperature solvent (methyl ethyl ketone) and annealing method (under 150°C) was developed. Developed film achieved low frequency of 81 Hz.
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