A Light‐Driven Ionogel Fabric Synapse with Strain‐Insensitivity and Broadband Response for Textile Photoperception

Abstract Fabric photosynapses offer integrated optical sensing and information processing for wearable textile electronics and neuromorphic systems. However, developing high‐performance textile photosynapses with self‐powered operation, soft flexibility, and robust conformability remains a critical challenge. Here, a light‐driven textile photoelectric synapse is engineered by weaving polydopamine nanoparticle‐doped and undoped ionogel fibers into an interlaced architecture is presented. The fabric junction demonstrates textile‐compatible elasticity and broadband photoperception without any external power, with a response wavelength of 365–625 nm and a paired‐pulse facilitation index of 148%. The self‐driven operation arises from photothermal‐induced ion drift across the junction interface under light exposure. The woven textile can conformal with arbitrary complex geometries and achieve neuromorphic imaging. Remarkably, the architecture retains stable functionality under tensile deformation and exhibits self‐repair properties after structural damage. As a proof of concept, a textile neuromorphic vision system is developed to simulate image memorization and forgetting processes. This study advances the development of photosynaptic fabric toward intelligent textile technology.