High-temperature property of flexible polyvinylidene fluoride/(Na<sub>0.5</sub>K<sub>0.5</sub>)NbO<sub>3</sub> vibration energy harvester
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- MATSUBARA Norihisa
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
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- FUCHIGAMI Teruaki
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
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- KAKIMOTO Ken-ichi
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology Frontier Research Institute for Materials Science, Nagoya Institute of Technology
Abstract
Flexible polyvinylidene fluoride/(Na0.5K0.5)NbO3 (PVDF/NKN) composite harvester was first characterized at high temperature. The origin of high flexibility is the unique structure assembled by alternately stacking four-sheets and three-fabrics (4-3 harvester). The 4-3 harvester was fabricated by uniformly dispersing piezoelectric NKN particles within a PVDF-sheet and a PVDF-fabric layer. Electric power-output of the 4-3 harvester was measured by using a custom-designed apparatus in the temperature range from 25 to 150°C and was compared with that of PVDF/BaTiO3 (BT) harvester. The PVDF/NKN 4-3 harvesters and PVDF/BT 4-3 harvesters showed significantly different temperature dependences in the temperature range from 25 to 150°C. Electric power-output obtained at 25°C by applying an oscillation at 75 Hz in the thickness direction for the PVDF/NKN 4-3 harvesters and PVDF/BT 4-3 harvesters were 5.7 and 3.5 nW/cm2 per an amplitude, respectively. In particular, at temperature above 130°C, the PVDF/NKN 4-3 harvester showed a stable output performance from 3.3 to 3.8 nW/cm2, whereas the PVDF/BT 4-3 harvester demonstrated no electric power-output. Thus, the harvester composed of high TC piezoelectric particles such as NKN is suitable as a vibration energy harvester operated under high-temperature environment.
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 125 (6), 449-453, 2017
The Ceramic Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205285495168
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- NII Article ID
- 130006899923
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- ISSN
- 13486535
- 18820743
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed