PDMS/PVA composite ferroelectret for improved energy harvesting performance

[摘要] This paper address the PDMS ferroelectret discharge issue for improved long- term energy harvesting performance. The PDMS/PVA ferroelectret is fabricated using a 3D-printed plastic mould technology and a functional PVA composite layer is introduced. The PDMS/PVA composite ferroelectret achieved 80% piezoelectric coefficient d33remaining, compared with 40% without the proposed layer over 72 hours. Further, the retained percentage of output voltage is about 73% over 72 hours.

[发布机构] Electronics and Electrical Engineering Group, Electronics and Computer Science University of Southampton, Southampton; SO17 1BJ, United Kingdom^1;Cranfield University, Cranfield; MK43 0AL, United Kingdom^2;School of Computing, Electronics and Maths, Faculty of Engineering, Environment and Computing, Coventry University, Coventry; CV1 5FB, United Kingdom^3

[效力级别] 能源学

[关键词] Composite layer;Ferroelectret;Output voltages;Piezoelectric coefficient