聚偏氟乙烯
材料科学
蚀刻(微加工)
压电
振荡(细胞信号)
光电子学
能量收集
复合材料
能量(信号处理)
聚合物
化学
生物化学
统计
数学
图层(电子)
作者
Chengliang Sun,Jian Shi,Dylan Bayerl,Xudong Wang
摘要
In this paper, we report a technique that uses piezoelectric polyvinylidene 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.
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