Highly stretchable three-dimensional percolated conductive nano-network structure, method of manufacturing the same, strain sensor including the same and wearable device including the same고신축성 3차원 전도성 나노 네트워크 구조체, 이의 제조 방법, 이를 포함하는 인장 센서 및 웨어러블 기기
In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.