An Integrated Flexible Harvester Coupled Triboelectric and Piezoelectric Mechanisms Using PDMS/MWCNT and PVDF

摘要

This paper describes the design, fabrication, and characterization of an integrated flexible energy harvester with triboelectric and piezoelectric hybrid mechanisms. The double-side tribological layers are polydimethylsiloxane (PDMS) and PDMS/multiwall carbon nanotube (MWCNT) carbon nanotube, respectively, which works at triboelectric mechanism. The Polyvinylidene Fluoride (PVDF) film with double-side Al electrodes is bonded with PDMS layer to form the functional layer of piezoelectric harvester. The dimension of the fabricated prototype is mm. The experiments at the varied frequencies from 1 to 5 Hz are conducted to characterize the performance of the harvester under the tapping force of 5 N. The output voltages from triboelectric and piezoelectric harvester are 30 and 6.5 V at 5 Hz, respectively. The maximum output power from triboelectric one is under the matched resistance of 15 . While the maximum power from piezoelectric one was at 1 . [2015-0003]