Recently, various wearable devices such as smart bands, smart watches, smart glasses, etc. have been developed in order to improve our quality of life. However, they have limited operating time due to volume and weight constraints.
In order to solve these problems, several research groups have reported transparent, flexible, and stretchable nanogenerators using plastic or elastomer substrates. Nonetheless, those substrates are not suitable enough for actual wearable devices. We therefore began a study of the textile based triboelectric nanogenerator that are indeed inherently compatible with the human body movements.