Vapor-Phase Polymerization of PEDOT for Wearable Fabric Pressure Sensors

Wearable pressure sensors with an ultra-wide linearity range and high sensitivity have atttracted increasing interest on account of their great potential applications in artificial tactile sensing, human health monitoring and care systems. Herein, poly(3,4-ethylenedioxythiophene) (PEDOT) was in situ synthesized on non-woven fabric and served as the sensing layer to realize highly reliable wearable all-fabric pressure sensors. Because of the surface microstructure of the PEDOT-coated fabric, such pressure sensors exhibited excellent performance, which included a high sensitivity of 5.95 kPa -1 , wide working range (0-200 kPa) and fast response/recovery time (11/15 ms). Their practical applications in human physiological signal monitoring are further demonstrated, showing their potential as wearable electronics in health monitoring.