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

Chao Ye; Quanfu Xu; Jing Ren; Shengjie Ling

doi:10.1007/s42765-019-00023-w

Advanced Fiber Materials ›› 2020, Vol. 2 ›› Issue (1) : 24 -33. DOI: 10.1007/s42765-019-00023-w

Research Article

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

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¹School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, 201210, Shanghai, China

²Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 200092, Shanghai, China

^c renjing@shanghaitech.edu.cn

^d lingshj@shanghaitech.edu.cn

Chao Ye

received his B.S. degree in Nonwoven Materials and Engineering from Soochow university in 2017 and he is currently perusing a Ph.D. from ShanghaiTech University. His researches focus on fiber sensors and smart textiles.

Quanfu Xu

is currently an attending doctor in Xinhua hospital affiliated to School of medicine, Shanghai Jiao Tong university. His research focuses on the applications of advanced materials in cardiovascular disease and health monitoring. He obtained his M.D. degree from the First Military Medical University (2006) and Ph.D. from Shanghai Jiao Tong University School of Medicine (2012). During 2010–2012, He awarded the State Scholarship Fund of China to pursue his study at Goethe University, Frankfurt am Main, Germany, as a joint Ph.D. student.

Jing Ren

is currently a Research Assistant Professor in the School of Physical Science and Technology at ShanghaiTech University. She received her B.S. in Chemistry at Lanzhou University in China in 2007, Ph.D. in Macromolecular Chemistry and Physics at Fudan University in China in 2016. She then worked at Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine before joining ShanghaiTech University in 2018. She focuses on the development of functional natural materials for wearable applications.

Shengjie Ling

is an assistant professor in the School of Physical Science and Technology at ShanghaiTech University. His research focuses on developing biopolymer functional materials through the integration of synchrotron-based characterization, computational modeling and bioinspired & biomimetic fabrication. He obtained his B.S. degree from the Zhejiang University of Technology (2009) and Ph.D. from Fudan University (2014). During 2012–2013, He awarded the State Scholarship Fund of China to pursue his study at ETH Zurich, Switzerland, as a joint Ph.D. student. Prior to joining ShanghaiTech University, he worked as a postdoctoral associate at MIT and Tufts University (2014–2017).

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Abstract

Abstract

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.

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Chao Ye, Quanfu Xu, Jing Ren, Shengjie Ling. Violin String Inspired Core-Sheath Silk/Steel Yarns for Wearable Triboelectric Nanogenerator Applications. Advanced Fiber Materials, 2020, 2(1): 24-33 DOI:10.1007/s42765-019-00023-w