Self-Powered Active Sensor with Concentric Topography of Piezoelectric Fibers
| Autor: | Shan Chien Li, Yiin Kuen Fuh, Bo Sheng Wang, Zih Ming Huang |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Materials science
Deformation sensors Acoustics Nanotechnology 02 engineering and technology Concentric Deformation (meteorology) 010402 general chemistry Parallel Near-field electrospinning (NFES) 01 natural sciences Direct-write Materials Science(all) General Materials Science Fiber Mechanical energy Nano Express 021001 nanoscience & nanotechnology Condensed Matter Physics Polyvinylidene fluoride (PVDF) Piezoelectricity Electrospinning 0104 chemical sciences Piezoelectric generator with concentrically circular topography (PGCT) 0210 nano-technology Voltage |
| Zdroj: | Nanoscale Research Letters |
| ISSN: | 1931-7573 |
| DOI: | 10.1186/s11671-016-1786-x |
| Popis: | In this study, we demonstrated a flexible and self-powered sensor based on piezoelectric fibers in the diameter range of nano- and micro-scales. Our work is distinctively different from previous electrospinning research; we fabricated this apparatus precisely via near-field electrospinning which has a spectacular performance to harvest mechanical deformation in arbitrary direction and a novel concentrically circular topography. There are many piezoelectric devices based on electrospinning polymeric fibers. However, the fibers were mostly patterned in parallel lines and they could be actuated in limited direction only. To overcome this predicament, we re-arranged the parallel alignment into concentric circle pattern which made it possible to collect the mechanical energy whenever the deformation is along same axis or not. Despite the change of topography, the output voltage and current could still reach to 5 V and 400 nA, respectively, despite the mechanical deformation was from different direction. This new arbitrarily directional piezoelectric generator with concentrically circular topography (PGCT) allowed the piezoelectric device to harvest more mechanical energy than the one-directional alignment fiber-based devices, and this PGCT could perform even better output which promised more versatile and efficient using as a wearable electronics or sensor. Electronic supplementary material The online version of this article (doi:10.1186/s11671-016-1786-x) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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