驻极体

本文报道了一种由PDMS (聚二甲基硅氧烷)微腔、金属电极、驻极体板组成的新型能量采集器装置液室单元。在微流体腔中，由于气-液界面介电常数的变化，K掺杂到氧化硅层中，形成驻极体中的固定电荷并极化产生电能。我们预见心跳作为外部振动源，将液体泵入液细胞单元中。可以产生电流给肌萎缩侧索硬化症的膈肌节拍器等小型植入式医用电子充电。

In this paper, we report on a proof-of-concept level energy harvester device that could earn electric power of 0.093 µW/cm by the fluidic motion in a PDMS (polydimethylsiloxane) micro fluidic channel placed on a silicon substrate with built-in permanent electrical charges or so-called electrets. Targeting implantable medical devices such as respiratory pace-maker, the heart beat or aspiration is thought to be the source of motion as a final shape of the energy harvesting system.