Triboelectric nanogenerators and sensors can be applied as human− machine interfaces to the next generation of intelligent and interactive products, where ﬂexible tactile sensors exhibit great advantages for diversiﬁed applications such as robotic control. In this paper, we present a self-powered, ﬂexible, triboelectric sensor (SFTS) patch for ﬁnger trajectory sensing and further apply the collected information for robotic control. This innovative sensor consists of ﬂexible and environmentally friendly materials, i.e., starch-based hydrogel, polydimethylsiloxane (PDMS), and silicone rubber. The sensor patch can be divided into a two-dimensional (2D) SFTS for in-plane robotic movement control and a one-dimensional (1D) SFTS for out-of-plane robotic movement control. The 2D-SFTS is designed with a grid structure on top of the sensing surface to track the continuous sliding information on the ﬁngertip, e.g., trajectory, velocity, and acceleration, with four circumjacent starchbased hydrogel PDMS elastomer electrodes. Combining the 2D-SFTS with the 1D-SFTS, three-dimensional (3D) spatial information can be generated and applied to control the 3D motion of a robotic manipulator, and the real-time demonstration is successfully realized. With the facile design and very low-cost materials, the proposed SFTS shows great potential for applications in robotics control, touch screens, and electronic skins.
Researcher / Author: Tao Chen, Qiongfeng Shi, Minglu Zhu, Tianyiyi He, Tianyiyi He, Lining Sun, Lei Yang, and Chengkuo Lee.
ACS Nano,2018,12 (11),DOI:10.1021/acsnano.8b06747;
For full publication paper, email: email@example.com