隨著技術的進步，組件的輕便和小型化以及多功能可穿戴電子設備得到了廣泛的發展。近年來開發的摩擦奈米發電機（TENG）的自供電系統已受到關注。它可用作可穿戴電子設備的連續能源。但是，大多數TENG由固態-固態材料製成，少有固態-液態的TENG被開發以便用作水力發電的能量收集。因此本研究結合了摩擦靜電和靜電感應原理製作出以ITO為感應電極，並使用以空氣作連續相、水作分散相之flow-focusing液珠生成方式，完成微流體液珠之摩擦奈米發電晶片，進行液珠的水力能源收集。
由實驗結果發現，液珠生成之大小，在固定推動水之壓力時，液珠隨著空氣壓力之下降而增加。此外，使用不同之摩擦層材料(cytop、teflon、PDMS)所製作之微流體液珠TENG在同一大小之液珠通過微流道時，產生之電壓並不相同，其中PDMS產生之電壓為三者之中最大的，在IDT電極寬度為1.5mm時，可輸出約25.5 mV；3mm時，可輸出約51 mV；6mm時，可輸出約102 mV。
由此可知除了材料選擇外，感應電極之面積與輸出電壓呈正相關，這有助於我們開發出一種微型發電器，以利日後應用於可攜式微型電器當中。

With the advancement of technology, lightness and miniaturization of components, and multi-functional wearable electronic devices are widely developed. The self-powered system of triboelectric nanogenerators (TENGs) developed in recent years have been paid attention. It can be used as a continuous energy source for wearable electronic devices. However, most of TENGs are made of solid-solid materials, and few solid-liquid TENGs are used as hydropower energy harvesting. Therefore, this research combines the principles of triboelectric effect、electrostatic induction and microfluidic to produce a microfluidic droplet triboelectric nanogenerator chip, which is a device made by ITO as the sensing electrodes, and the flow-focusing as droplets generated method with air as the continuous phase and water as the dispersed phase, to carry out the hydropower collection of the droplets.
From the experimental results, it is found that the size of the droplets generated increases with the drop of air pressure when the pressure of the water is fixed. In addition, the microfluidic TENG made of different tribolayer materials(cytop, teflon, PDMS) produces different voltages when the same size droplets pass through the channel. Among them, the voltage generated by PDMS is the best of three materials. When the IDT electrode width is 1.5mm, it can output about 25.5 mV; when it is 3mm, it can output about 51 mV; when it is 6mm, it can output about 102 mV.
It can be seen that in addition to material selection, the area of the sensing electrode is positively correlated with the output voltage, which helps us to develop a micro-generator that can be used in portable micro-appliances in the future.

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