ArticleACS omega2026
PEDOT-PSS Surface-Coated Warp-Knitted Spacer Structure for Thermoelectric-Piezoelectric Dual-Mode Flexible Sensor.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
Intelligent wearable fabrics featuring multimodal sensors capable of detecting human physiological signals have attracted considerable attention for next-generation health monitoring applications. Piezoelectric and thermoelectric functional polymers can be simultaneously engineered into fiber-based architectures; however, their sensitivity and synergistic response under multiple physical fields remain insufficiently understood and require systematic investigation. In this work, a three-dimensional flexible PPSF sensing unit with dual thermoelectric and piezoelectric response characteristics was developed by uniformly coating PEDOT/PSS onto the surface and PVDF spacer filaments of a 3D spacer fabric via in situ polymerization combined with phase separation, followed by post-treatment with dimethyl sulfoxide (DMSO) and ethylene glycol (EG). The fabrication process, surface morphology, and thermoelectric and mechanical properties, as well as air permeability of the PPSF, were comprehensively characterized. The Seebeck coefficient, electrical conductivity, and power factor were systematically evaluated. The optimized PPSF (5 vol % DMSO, 2 h EG treatment, 3 mm thickness) achieved a Seebeck coefficient of 25.6 μV K
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