Recently, the water motion active transducer, an electricity generator which uses water contact variations, has attracted much attention as an eco-friendly energy harvesting device. In order to understand the electricity generation induced by ionic behavior in water at the solid-liquid interface of a water motion active transducer accurately and apply it to a wide range of applications, fundamental study of the surface functionalities at the solid-liquid interface of the water motion active transducer is essential. However, most studies in the field of water motion active transducer still remain them for a high power performance. Herein, through an investigation of surface functionality control at a solid-liquid interface, we modulate the generating electricity of a water motion active transducer and successfully demonstrate its potential toward the realization of a novel self-powered pH sensor. For both hydrophobicity and surface functionality control at the solid-liquid interface, we used a self-assembled monolayer technique with APTES ((3-aminopropyl) triethoxysilane) and POTS (1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane). Through control of the surface functionalities at the interface, we show substantial potential for the modulation of the generating electricity. In addition, the unique electric characteristics of this device offer a fundamental understanding of the origin of electricity generation at solid-liquid interfaces induced by water motion and provide a more accurate understanding of the ionic behaviors occurring at solid-liquid interfaces toward the novel ion-functional devices.

近来，水运动有源换能器，一种利用水接触变化的发电机，已经作为生态友好的能量收集装置引起了广泛的关注。为了准确了解水运动有源换能器的固-液界面处水中离子行为引起的发电并将其应用到广泛的应用中，对水的运动固相界面处的表面功能进行了基础研究。水运动主动换能器必不可少。但是，水运动有源换能器领域中的大多数研究仍保留了它们的高功率性能。在此，通过研究固液界面处的表面功能控制，我们调制了水运动主动传感器的发电，并成功展示了其在实现新型自供电pH传感器方面的潜力。为了控制固液界面的疏水性和表面功能，我们使用了带有APTES（（3-氨基丙基）三乙氧基硅烷）和POTS（1H，1H，2H，2H-全氟辛基三乙氧基硅烷）的自组装单层技术。通过控制界面处的表面功能，我们显示出调制发电的巨大潜力。此外，