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A stretchable triboelectric generator with coplanar integration design of energy harvesting and strain sensing

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Abstract

The rapid development of flexible triboelectric nanogenerators (TENGs) has become an alternative to batteries for wearable devices. Stretchable, multifunctional, and low-cost are the primary development directions for these wearable devices based on TENG. Herein, a stretchable triboelectric generator with coplanar integration was designed for energy harvesting and force sensing. The industrial conductive silicone and silicone were used to fabricate the TENG with a thickness of less than 0.9 mm. When the elongation was less than 150%, TENG exhibited excellent linear characteristics in the resistance-tensile strain correspondence, and the coefficient of determination was 0.99. This stretchable TENG with a sufficient contact area of 9 cm2 could generate a short-circuit current of 2 μA when it was in contact with the skin. Lastly, an intelligent tension monitoring wearable device that can effectively measure the tensile force was developed. Such a stretchable, coplanar integration-based, and low-cost wearable device has excellent applicability in wearable electronics.

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Correspondence to ChenYang Xue.

Additional information

This work was supported by the National Key Research and Development Program of China (Grant No. 2019YFB2004800), National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 61525107), and National Natural Science Foundation for China as National Major Scientific Instruments Development Project (Grant No. 61727806).

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The supporting information is available online at https://tech.scichina.com and https://link.springer.com. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.

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Wu, B., Zhang, Z., Xue, X. et al. A stretchable triboelectric generator with coplanar integration design of energy harvesting and strain sensing. Sci. China Technol. Sci. 65, 221–230 (2022). https://doi.org/10.1007/s11431-020-1808-2

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  • DOI: https://doi.org/10.1007/s11431-020-1808-2

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