2D Silver Nanosheet Assembly for an Isotropic, Stretchable, and Highly Conductive Nanomembrane

Abstract Achieving isotropic electrical and mechanical properties is essential for skin‐integrated electronics to operate reliably under complex, multidirectional skin deformations. However, nanomaterial‐based composites in skin electronics often rely on anisotropic filler configurations to meet demanding requirements for high‐quality bio‐interfacing materials, such as ultrathin thickness, high conductivity, and stretchability. While directional alignment of high‐aspect‐ratio nanofillers facilitates dense percolation, it compromises isotropic material uniformity. To overcome the trade‐off between high performance and omnidirectional material properties in the nanocomposites, a controlled assembly strategy is proposed for silver nanosheets (AgNSs) that forms face‐to‐face contacts with partial overlaps, enhancing inter‐sheet contact area and reducing contact resistance. Implementing this a…