Unlocking Spatial Surface Energy in Porous Skeletons: a Pathway to Bridging Electronic Circuits from 2D to 3D Architectures

Abstract Conventional approaches to creating high‐resolution electric circuits face challenges such as the requirement for skilled personnel and expensive equipment. In response, we propose an innovative strategy that leverages a photochemically modified porous polymer skeleton for in‐situ circuit fabrication. By developing maskless surface energy manipulation that guides PEDOT:PSS‐based conductive ink deposition, electric circuits with high precision, density, stability and adaptability are effortlessly engineered within or atop the porous skeleton, enabling transitions between 2D and 3D circuit configurations. This process simplifies prototyping while significantly reducing costs and maintaining efficiency, promising advancements across various technological sectors.