Violin String Inspired Core-Sheath Silk/Steel Yarns for Wearable Triboelectric Nanogenerator Applications  

作　　者：Chao Ye Quanfu Xu Jing Ren Shengjie Ling 

机构地区：[1]School of Physical Science and Technology,ShanghaiTech University,393 Middle Huaxia Road,Shanghai 201210,China [2]Department of Cardiology,Xinhua Hospital,School of Medicine,Shanghai Jiao Tong University,200092 Shanghai,China

出　　处：《Advanced Fiber Materials》2020年第1期24-33,共10页先进纤维材料（英文）

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).

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.

关 键 词：SILK Fiber Triboelectric nanogenerator Wearable energy devices 

分 类 号：TG1[金属学及工艺—金属学]