Abstract
We report on the direct evaporation of a conductive aluminum film onto the surface of a partially cured polydimethyl-siloxane elastomer, in order to produce conductive flexible films without the need of an anchoring layer to promote adhesion between the conductive layer and the elastomer. These layers show good adhesion as shown by the Scotch tape peeling test and their surface presents non-ordered but regular wrinkles due to the buckling surface. Electrical resistance measurements done using a four-probe configuration show an ohmic linear response. Measurements of the electrical resistance versus sample elongation show that these maintain their conductivity up to deformations of 30–40%. Finally, a simple working circuit is presented to validate the sample fabrication procedure.
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