Orientation Dependence of Power Generation on Piezoelectric Energy Harvesting Using Stretched Ferroelectric Polymer Films
Orientation Dependence of Power Generation on Piezoelectric Energy Harvesting Using Stretched Ferroelectric Polymer Films
复制标题
使用拉伸铁电聚合物薄膜进行压电能量收集发电的方向依赖性
DOI：
10.1088/1742-6596/1052/1/012112
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
and K. Ishida
中科院分区：
文献类型：
--
作者：
A Kobayashi;Y Koshiba;Y Ueno;T Kajihara;Y Tsujiura;M Morimoto;S Horike; T Fukushima;I Kanno;and K. Ishida
The piezoelectric vibration energy harvesters were fabricated by using uniaxially stretched poly (vinylidene difluoride/trifluoroethylene) copolymer (P (VDF/TrFE)) film, and the relationship between piezoelectric power generation and molecular orientation was investigated. The molecular orientation in the stretched P (VDF/TrFE) films was evaluated with polarized Fourier transfer infrared (FT-IR) spectra measurement. In stretched films, the main-chains of P (VDF/TrFE) were aligned along the stretching direction. The piezoelectric properties and the electric power generation of stretched P (VDF/TrFE) films were strongly depended on their molecular orientation, measuring by cantilever-type energy harvesters. The piezoelectric coefficient (e) and output power observed in the energy harvester with the film stretched in the longitudinal direction of cantilever were 16.9 mC/m 2 and 222 nW, respectively. These values were approximately 2.1 and 3.5 times these of the unstretched elements.
