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access icon free Woven piezoelectric structure for stretchable energy harvester

© The Institution of Engineering and Technology
Received 22/10/2012, Published
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The energy harvester is an attractive power source for wireless portable electronics, especially in applications for handheld and wearable electronic devices. Proposed is a woven piezoelectric structure for possible application as a wearable energy harvester. The proposed device consists of polymer column threads and a piezoelectric film weaving them into stitches in the row. Polymer patches are alternately patterned on the upper and bottom sides of the piezoelectric film, where the charges are generated when subjected to a stretching and contraction motion. A maximum peak power density of 0.63 mW/cm2 was obtained from repeated stretching and contraction motion at an operation frequency of 8 Hz.

Inspec keywords: piezoelectric devices; piezoelectric transducers; polymers; piezoelectric thin films; piezoelectric materials; energy harvesting

Other keywords: contraction motion; piezoelectric film; maximum peak power density; stretchable energy harvester; woven piezoelectric structure; handheld devices; wearable energy harvester; polymer column threads; frequency 8 Hz; stretching motion; wireless portable electronics; wearable electronic devices; power source; polymer patches; piezoelectric film weaving

Subjects: Piezoelectric devices; Energy harvesting; Energy harvesting

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