Memristive Fibers for Intelligent Textiles Information Storage and Processing in Multi-Scenarios.

Memristive fibers combine information storage and computing in textile-compatible crossbar arrays, enabling intelligent textiles to process signals from integrated electronics. A simple, cost-effective coating method for complex fiber surfaces with insufficient conductivity or difficult to withstand high pressure plays a key role in textile memristor tech. Here, a high-performance and reliable textile memristor fabricated from robust copper-tin oxide coated carbon fibers (CuSnO@Cf) memristive fibers through a process involving two-stage selective electroless plating and subsequent thermal oxidation is reported. The surface coating of the memristive fiber includes a self-lopaded active electrode containing metal/intermetallic compounds (metal/IMCs), and a memristive functional layer (bimetallic amorphous oxide), which makes it exhibit a low set voltage (≈0.342 V), long retention time (>104 s) for multilevel storage (5 stages), high ON/OFF ratio (up to 6.58 × 105), low energy consumption (34.5 pW), multi conductivity state (24), excellent synaptic plasticity, outstanding stability and durability. Besides, the textile memristor exhibits good repeatability and multi-level storage capability between devices, and can clearly recognize letters (H, V, O) through offline training and weight mapping. Highly compatible with intelligent textiles, the technology enables real-time diagnostics with accurate physiological data analysis. These advanced information processing capabilities will significantly advance intelligent textiles systems.