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Large-area, untethered, metamorphic, and omnidirectionally stretchable multiplexing self-powered triboelectric skins
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Large-area, untethered, metamorphic, and omnidirectionally stretchable multiplexing self-powered triboelectric skins
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Journal Article
Large-area, untethered, metamorphic, and omnidirectionally stretchable multiplexing self-powered triboelectric skins
2024
Overview
Large-area metamorphic stretchable sensor networks are desirable in haptic sensing and next-generation electronics. Triboelectric nanogenerator-based self-powered tactile sensors in single-electrode mode constitute one of the best solutions with ideal attributes. However, their large-area multiplexing utilizations are restricted by severe misrecognition between sensing nodes and high-density internal circuits. Here, we provide an electrical signal shielding strategy delivering a large-area multiplexing self-powered untethered triboelectric electronic skin (UTE-skin) with an ultralow misrecognition rate (0.20%). An omnidirectionally stretchable carbon black-Ecoflex composite-based shielding layer is developed to effectively attenuate electrostatic interference from wirings, guaranteeing low-level noise in sensing matrices. UTE-skin operates reliably under 100% uniaxial, 100% biaxial, and 400% isotropic strains, achieving high-quality pressure imaging and multi-touch real-time visualization. Smart gloves for tactile recognition, intelligent insoles for gait analysis, and deformable human-machine interfaces are demonstrated. This work signifies a substantial breakthrough in haptic sensing, offering solutions for the previously challenging issue of large-area multiplexing sensing arrays.
Stretchable sensor networks with multiplexing designs can result in misrecognition due to electrical signal interferences from the sensing nodes and internal circuits. Here, Shao et al. show an untethered triboelectric electronic skin with an elastic composite-based shield layer for lower misrecognition rate.
