Agradecimentos: R.W., N.J., and J.S. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (no. U1533122, 91648109), the National Key Research and Development Program of China (2017YFB030700), the Science and Technology Support Program of Changzhou (grants CZ20140013, CJ20159037, CZ20150018, and CE20155017), the Innovation and Enterprise Shuangchuang Talents Plan of Jiangsu province-2015, the Priority Academic Program Development of Jiangsu Higher Education Institutions on Renewable Energy Materials Science and Engineering, and the Jiangsu Key Laboratory for Photovoltaic Engineering Science. The authors thank Haukou Cheminspired Technology Co., Ltd. for graphic design and schemes painting Ver menos

Abstract: Current research about resistive sensors is rarely focusing on improving the strain range and linearity of resistance-strain dependence. In this paper, a bi-sheath buckled structure is designed containing buckled carbon nanotube sheets and buckled rubber on rubber fiber. Strain decrease results in increasing buckle contact by the rubber interlayer and a large decrease in resistance. The resulting strain sensor can be reversibly stretched to 600%, undergoing a linear resistance increase as large as 102% for 0-200% strain and 160% for 200-600% strain. This strain sensor shows high linearity, fast response time, high resolution, excellent stability, and almost no hysteresis Ver menos