Abstract

With the popularity and multi-function of intelligent electronic equipment, the wearable electronic devices present a huge market prospect. Stretchable sensor, as an important wearable electronic device, is not only required to have high sensitivity, but also to have good stretchability, robustness, and other mechanical properties. Because the room temperature liquid metal has remarkable deformation ability and good electrical conductivity, it is applied to develop several new high-powered stretchable sensors. In this paper, the current researches of liquid metal-based strain and tactile sensors are reviewed, and future directions of those sensors are proposed according to the present challenges.

Keywords: Liquid metal; Strain sensor; Tactile sensor; Stretchable sensor