PVDF microbelts for harvesting energy from respiration
PVDF microbelts for harvesting energy from respiration
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DOI：
10.1039/c1ee02241e
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发表时间：
2011-11-01
影响因子：
32.5
通讯作者：
Wang, Xudong
中科院分区：
文献类型：
--
作者：
Sun, Chengliang;Shi, Jian;Wang, Xudong
本文报道了一种利用压电式聚偏氟乙烯(PVDF)微带通过其谐振振荡将低速气流中的能量转换为电能的技术。采用自顶向下反应离子刻蚀工艺制备了微米厚的PVDF薄膜，该工艺通过刻蚀时间来控制薄膜的厚度，并且保持了较好的压电相。从理论上预测了厚度、气流速度和电输出之间的关系，并对其进行了实验表征。PVDF微带能够从低速气流中产生足够的电能，用于小型电子设备的持续运行。还展示了它们从模拟呼吸中获取能量的能力。
In this paper, we report a technique that uses piezoelectric poly-vinylidene fluoride (PVDF) microbelts to convert the energy from low-speed air flow to electricity via their resonant oscillation. The micrometre thick PVDF thin films were fabricated by a top-down reactive ion etching process, where the thickness was controlled by etching time and the piezoelectric phase was well preserved. The thickness, air flow speed and electrical output relationship was predicted theoretically and characterized experimentally. The PVDF microbelts were able to generate sufficient electrical energy from low speed air flow for the sustained operation of small electronic devices. Their capability for harvesting energy from simulated respiration was also demonstrated.