Highly Conductive, Flexible, and Robust Silver Nanowire-Embedded Carboxymethyl Cellulose/Poly(3,4-Ethylenedioxythiophene):Poly(Styrenesulfonate) Composite Films for Wearable Heaters and On-Skin Sensors

Highly conductive, flexible, and durable silver nanowire (AgNW)-embedded carboxymethyl cellulose (CMC)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) (s-CMC/PEDOT:PSS) composite films were investigated for application in wearable heaters on-skin sensors. The electrical conductivities of the CMC/PEDOT:PSS composites optimized by controlling PEDOT:PSS weight ratio CMC, sheet resistance decreased significantly from 6828 (CMC:PEDOT:PSS = 1:5) to 83 ?/sq 1:17). Furthermore, AgNW networks embedded onto surface further enhance their conductivity. introduction resulted a significant decrease 81 7 ?/sq. In addition, s-CMC/PEDOT:PSS film exhibited high mechanical stability repeated bending tests. uniformly distributed AgNWs inside enhanced contact between conducting domains CMC matrix. Based on highly robust films, high-performance heating devices sensors fabricated. heater achieves temperature 159.5 ? with uniform distribution. conformably integrated human skin which successfully detected various motions, including finger bending, wrist touch, ankle walking real-time. exhibit sensing performance sensitivity, conformability, superior robustness, low power consumption. could be promising flexible conductive material new opportunities next-generation electronics.