Fig. 4: Electrical properties of multifilament with different pre-stretching strains. | npj Flexible Electronics

Fig. 4: Electrical properties of multifilament with different pre-stretching strains.

From: Ultrastretchable and wearable conductive multifilament enabled by buckled polypyrrole structure in parallel

Fig. 4

a Relative resistance change of \({{{\mathrm{PU}}}}_y^{420{{{\mathrm{D}}}}}\) @PPy upon increasing strain. b Conductivity-Strain curves of \({{{\mathrm{PU}}}}_y^{420{{{\mathrm{D}}}}}\) @PPy. c The diagram of permeation effect of multifilament with different pre-stretching strains on small molecule (such as DA, FeCl3, NaSSA, and Py represented by green spheres). d-e Comparison of \({{{\mathrm{PU}}}}_{200\% }^{420{{{\mathrm{D}}}}}\) @PPy with 1D conductor reported in the literature (Ref. 8,12,35,36,37,38,39,40,41). f SEM images and g the resistance of \({{{\mathrm{PU}}}}_{200\% }^{420{{{\mathrm{D}}}}}\) @PPy under increasing strain. Scale bar is 100 μm.

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