Adaptive Carbon Nanotube Patches for Versatile Electronic Textiles and Wind‐Harvesting Applications

ABSTRACT Electronic textiles are receiving much attention as a versatile platform that integrates electronic functionality into fabrics, enabling diverse applications in flexible and wearable electronics. Research in electronic textiles generally follows two main approaches: integrating electronic components onto fabrics or developing textiles with intrinsic electrical functionality, yet both often suffer from irreversibility and limited adaptability. This study introduces an adhesion‐tunable electronic patch based on a carbon nanotube/paraffin composite, allowing direct application to textiles. The patch offers distinct advantages, attaching easily to various fabrics without additional adhesives and being configurable in two forms: temporary or permanent adhesion. This study addresses key challenges of electronic textiles by introducing tunable, pressure‐responsive adhesion that provides either reusability or robustness as required. The patch exhibits robust mechanical stability and reliable electrical conductivity over a wide range of stress conditions, functioning effectively as a triboelectric nanogenerator (TENG) electrode. The TENGs generate a maximum open‐circuit voltage of ∼60 V under low contact forces. Furthermore, in a wind‐harvesting design, the geometry of a suspended triboelectric film is optimized to induce fluttering motion and enhance electrical output. These results demonstrate a commercially viable and textile‐compatible approach that combines simple and rapid fabrication with tunable adhesion for diverse application needs.