Pre-strain Strategy for Developing a Highly Stretchable and Foldable One-Dimensional Conductive Cord Based on a Ag Nanowire Network
A highly stretchable and foldable conductive cord was developed by depositing silver nanowires (AgNWs) on a polyurethane cord. The application of pre-strain to the cord during the deposition of AgNWs resulted in the formation of wrinkled AgNW layer, thereby inducing structural stability towards stretching and bending. This conductive cord exhibited stable electric conduction under strain values of up to 167% and bending radius of 0.3 mm. Also, it could withstand a stretching test of 500 cycles at a strain of 50%.