High precision epidermal radio frequency antenna via nanofiber network for wireless stretchable multifunction electronics

Yufei Zhang, Zhihao Huo, Xiandi Wang (), Xun Han, Wenqiang Wu, Bensong Wan, Hui Wang, Junyi Zhai, Juan Tao, Caofeng Pan () and Zhong Lin Wang ()
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Yufei Zhang: Chinese Academy of Sciences
Zhihao Huo: Chinese Academy of Sciences
Xiandi Wang: Chinese Academy of Sciences
Xun Han: Chinese Academy of Sciences
Wenqiang Wu: Chinese Academy of Sciences
Bensong Wan: Chinese Academy of Sciences
Hui Wang: Beihang University
Junyi Zhai: Chinese Academy of Sciences
Juan Tao: Chinese Academy of Sciences
Caofeng Pan: Chinese Academy of Sciences
Zhong Lin Wang: Chinese Academy of Sciences

Nature Communications, 2020, vol. 11, issue 1, 1-10

Abstract: Abstract Recently, stretchable electronics combined with wireless technology have been crucial for realizing efficient human-machine interaction. Here, we demonstrate highly stretchable transparent wireless electronics composed of Ag nanofibers coils and functional electronic components for power transfer and information communication. Inspired by natural systems, various patterned Ag nanofibers electrodes with a net structure are fabricated via using lithography and wet etching. The device design is optimized by analyzing the quality factor and radio frequency properties of the coil, considering the effects of strain. Particularly, the wireless transmission efficiency of a five-turn coil drops by approximately only 50% at 10 MHz with the strain of 100%. Moreover, various complex functional wireless electronics are developed using near-field communication and frequency modulation technology for applications in content recognition and long-distance transmission (>1 m), respectively. In summary, the proposed device has considerable potential for applications in artificial electronic skins, human healthcare monitoring and soft robotics.

Date: 2020
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DOI: 10.1038/s41467-020-19367-8

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