Flexible Two-ply Piezoelectric Yarn Energy Harvester

Title
Flexible Two-ply Piezoelectric Yarn Energy Harvester
Authors
김선정
Keywords
Energy harvester; Flexible; Piezoelectric; Two-ply; Wearable; Yarn; POWER GENERATOR; NANOGENERATOR
Issue Date
2015-02
Publisher
BENTHAM SCIENCE PUBL LTD
Citation
CURRENT NANOSCIENCE, v. 11, NO 4, Page. 539-544
Abstract
We developed a flexible two-ply piezoelectric yarn-type generator using an electrospun polyvinylidenefluoride-co- trifluoroethylene (PVDF-TrFE) mat and a commercially available silver-coated nylon fiber. By rolling the silver-coated nylon fiber into the electrospun PVDF-TrFE mat as the inner electrode, the two-dimensional piezoelectric PVDF-TrFE mat was easily transformed into a one-dimensional fiber. Then silver-coated nylon fiber rolled in PVDF-TrFE was plied with another similar fiber to make a flexible two-ply piezoelectric yarn. The overall fabrication processes of the flexible two-ply piezoelectric yarn are simple and have a high application potential. The flexible two-ply piezoelectric yarn can generate up to 0.7 V in compression and 0.55 V in tension. The yarn retained the piezoelectric performance in various shapes, such as a sewn structure. In addition, the piezoelectric performance was sensitive to velocity and pressure. The flexible two-ply piezoelectric yarn has potential applications as a human motion sensor, as a building block of energy- harvesting textiles, and in self-powered biomedical applications.
URI
http://www.ingentaconnect.com/content/ben/cnano/2015/00000011/00000004/art00024http://hdl.handle.net/20.500.11754/22054
ISSN
1573-4137
DOI
http://dx.doi.org/10.2174/1573413711666150225231434
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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