Energy harvesting using nana scale dual layers PVDF film for blood artery

In the past few years implanted devices have developed and many miniature devices have been introduced. However, these devices functionality are mainly dependent on its battery life which remains a major drawback of implantable medical devices. Therefore, human energy harvesting would be a competent and reliable as alternative energy source. Piezoelectric material can be recruited for harvesting human body movement such as the cardiovascular system, which can be considered an unceasing power source. Piezoelectric polymer such as P-PVDF is capable of utilizing the mechanical deformation of an artery to scavenge energy. It is aimed on converting blood heart pressure energy into electrical power through the pulsatile motion of the arterial wall throughout the systolic and diastolic phases of the cardiac cycle. This paper ameliorates a current state of the art conducted by Potkay and Brooks (2008). A Nano-scale dual layer of polyvinylidene difluoride (PVDF) film embedded with a biocompatible self-curling silicon cuff for harvesting energy from a blood artery. The device size of 0.30 Cm³ is predicted to generate a peak power up to 60 nW when it is wrapped around a blood artery, which is much higher than the reported 16 nW by Potkay and Brooks (2008). The nano- scale of PVDF thickness was reduced precisely from 26 to 17μm using reactive ion etching (RIE) and preserving piezoelectric effects at the same time. The artery cuff would be capable of generating and accumulating the energy for powering an implanted device such as a pacemaker.