Figure 4
From: A highly stretchable, helical copper nanowire conductor exhibiting a stretchability of 700%
(a) Photographs of the fabrication process for the helical-structured CuNW electrodes. (b) Relative resistance variation as a function of strain for stretchable CuNW electrodes fabricated on both the planar and the helical-structured PDMS substrates. Both substrates were maintained under unstrained conditions while transferring the CuNW network films. (c) Relative resistance change of the CuNW electrodes fabricated on the helical-structured PDMS substrate during repeated stretching cycles at É›=100%. (d) A photograph of the LED light on a helical-structured CuNW electrode (see Supplementary movie S1 for the operation of this conducting spring).
