A Skin-attachable Flexible Piezoelectric Pulse Wave Energy Harvester

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Yoon, Sunghyun^1 ; Cho, Young-Ho^1

NanoSentuating Systems Laboratory, Cell Bench Research Center, Korea Advanced Institute of Science and Technology (KAIST), Korea, Republic of^1

关键词: Fabrication process;    Flexible polyimide;    Insulation layers;    Multi-functional;    Multi-layer devices;    Piezoelectric generators;    Piezoelectric layers;    Process simplicity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012026/pdf
DOI  :  10.1088/1742-6596/557/1/012026

来源: IOP

【 摘 要 】

We present a flexible piezoelectric generator, capable to harvest energy from human arterial pulse wave on the human wrist. Special features and advantages of the flexible piezoelectric generator include the multi-layer device design with contact windows and the simple fabrication process for the higher flexibility with the better energy harvesting efficiency. We have demonstrated the design effectiveness and the process simplicity of our skin- attachable flexible piezoelectric pulse wave energy harvester, composed of the sensitive P(VDF-TrFE) piezoelectric layer on the flexible polyimide support layer with windows. We experimentally characterize and demonstrate the energy harvesting capability of 0.2∼1.0μW in the Human heart rate range on the skin contact area of 3.71cm2. Additional physiological and/or vital signal monitoring devices can be fabricated and integrated on the skin attachable flexible generator, covered by an insulation layer; thus demonstrating the potentials and advantages of the present device for such applications to the flexible multi-functional selfpowered artificial skins, capable to detect physiological and/or vital signals on Human skin using the energy harvested from arterial pulse waves.