Graphene and Poly(3,4-ethylene dioxythiophene): Poly(4-styrene sulfonate) on Nonwoven Fabric as a Room Temperature Metal and Its Application as Dry Electrodes for Electrocardiography.

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ID: 11399
2019
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Abstract
Highly conductive, metal-like poly(ethylene terephthalate) (PET) nonwoven fabric was prepared by coating poly(3,4-ethylenedioxythiophene): poly(4-styrene sulfonate) (PEDOT:PSS) containing dimethylsulfoxide (DMSO) onto PET nonwoven fabric previously coated with graphene/graphite. The sheet resistance of the original nonwoven fabric decreases from >80 MΩ/□ to 1.1 Ω/□ after coating with 10.7 wt% graphene and 5.48 wt% PEDOT:PSS with a maximum current at breakdown of 4 A. This sheet resistance is lower than previously reported sheet resistances of fabrics coated with graphene films, PEDOT:PSS films, or PEDOT:PSS coated fabrics from the literature. The effect of temperature on the resistance of graphene/PEDOT:PSS coated fabric has revealed that the resistance decreases with increasing temperature, analogous to semiconductors, with a clear semiconductor-metal transition occurring at 290 K. Finally, a coating of 18 wt% graphene/graphite and 2.5 wt% PEDOT:PSS (Rs =5.5 Ω/□) screen printed on the nonwoven fabric was shown to function as an electrode for electrocardiography without any hydrogel and dry skin conditions. This composite coating finds application in wearable electronics for military and consumer sector.
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sinha2019grapheneacs Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sinha, Sneh;A Alamer, Fahad;Woltornist, Steven J;Noh, Yeonsik;Chen, Feiyang;McDannald, Austin;Allen, Christopher;Daniels, Robert;Deshmukh, Ajinkya;Jain, Menka;Chon, Ki;Adamson, Douglas H;Sotzing, Gregory;
Journal ACS applied materials & interfaces
Year 2019
DOI
10.1021/acsami.9b05379
URL
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