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Highly conductive and elastic nanomembrane for skin electronics

Cited 187 time in Web of Science Cited 196 time in Scopus
Authors

Jung, Dongjun; Lim, Chaehong; Shim, Hyung Joon; Kim, Yeongjun; Park, Chansul; Jung, Jaebong; Han, Sang Ihn; Sunwoo, Sung-Hyuk; Cho, Kyoung Won; Cha, Gi Doo; Kim, Dong Chan; Koo, Ja Hoon; Kim, Ji Hoon; Hyeon, TaeghwanKim, Dae-Hyeong

Issue Date
2021-08-27
Publisher
American Association for the Advancement of Science
Citation
Science, Vol.373 No.6558, pp.1022-1026
Abstract
Skin electronics require stretchable conductors that satisfy metallike conductivity, high stretchability, ultrathin thickness, and facile patternability, but achieving these characteristics simultaneously is challenging. We present a float assembly method to fabricate a nanomembrane that meets all these requirements. The method enables a compact assembly of nanomaterials at the water-oil interface and their partial embedment in an ultrathin elastomer membrane, which can distribute the applied strain in the elastomer membrane and thus lead to a high elasticity even with the high loading of the nanomaterials. Furthermore, the structure allows cold welding and bilayer stacking, resulting in high conductivity. These properties are preserved even after high-resolution patterning by using photolithography. A multifunctional epidermal sensor array can be fabricated with the patterned nanomembranes.
ISSN
0036-8075
URI
https://hdl.handle.net/10371/179080
DOI
https://doi.org/10.1126/science.abh4357
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  • College of Engineering
  • School of Chemical and Biological Engineering
Research Area Chemistry, Materials Science

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