摘要
Triboelectric nanogenerator(TENG)has attracted considerable attention in wearable electronics and energy harvesting associated with human activities.Fiber/yarn electrodes are widely applied in the wearable TENG system,which remains a challenge to guarantee mechanical ductility and stable electrical functions during long-term use.Inspired by high quality violin strings core-sheath design,silk/stainless-steel integrated yarns(SSYs)are continuously produced by simple co-wrapping spinning technique,which shows excellent mechanical strength,flexibility,conductivity,weaveability and triboelectric function.The SSYs can be modified to achieve tunable surface morphology.Finally,TENG cables have been fabricated,which can be stretched up to 100%and reveal a fast responsiveness to the stretching extent(voltage output of about 0.2,0.6,1.8,2.8 V at 13%,25%,38%,50%stretching,respectively).The TENG cables integrated textiles can not only harvest the energy generated by body movement but can also work as a self-supplied motion detector.
基金
This work was supported by the National Natural Science Foundation of China(No.U1832109,21808220,81700227)
Shanghai Pujiang Program(18PJ1408600)
the starting grant of ShanghaiTech University,Shanghai Sailing Program(17YF1411500)
Shanghai Rising-Star Program(18QA1403000).
