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Printable and Stretchable Conductive Wirings Comprising Silver Flakes and Elastomers

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5 Author(s)
Araki, T. ; Inst. of Sci. & Ind. Res., Osaka Univ., Ibaraki, Japan ; Nogi, M. ; Suganuma, K. ; Kogure, M.
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Smart textiles such as wearable computers and health-care sensors on everyday clothing will be realized likely in the near future. Here, we report that highly electrical conductors were fabricated by filling half of the volume of a polyurethane elastomer with microsized silver flakes under a low temperature of 70 °C. Given the high affinity of polyurethane with silver flakes and substrates, high conductivity was maintained on polyurethane substrates stretched up to a strain of 600% and on folded cellulosic substrates. Illumination of a light-emitting diode was also successful with the stretched wirings.

Published in:

Electron Device Letters, IEEE  (Volume:32 ,  Issue: 10 )