Triboelectric Nanogenerator as Wearable Sensing Devices

Triboelectric wearable devices provide an alternative pathway to exploit various physical, chemical, and biological sensors to acquire physiological (physical and/or chemical) information, in a real-time, self-powered, and noninvasive manner. In this chapter, different materials and various forms of triboelectric wearable devices are first examined. With material development, these devices possess improved stretchability and robustness and are distributed in different body positions for human status tracking. Integrated diversified components such as power source, processor, and wireless module are conceptualized to realize a more portable and full-function sensing system. Next, the discussion on wearable sensing devices is extended to large-scale triboelectric sensing devices in terms of smart home applications with the aid of artificial intelligence. Next-generation wearable sensors that enable the multimodal or multiplexed measurement of physical parameters and biochemical markers could be a transformative technology for comprehensive understanding of a complex system by leveraging more advanced artificial intelligence algorithms for multimodal sensory information decoding.