Foldable Textile Electronic Devices Using All‐Organic Conductive Fibers

Abstract

Scalable conductive multifilament of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrene sulfonate) (PEDOT:PSS) and poly(vinyl alcohol) (PVA) was fabricated by a coagulation of spinning dope solution in cold methanol. The multifilament was composed of uniform circular fibers with an average diameter of 60 AE 5 mm and showed good enough mechanical properties for textile processes while maintaining electronic conductivity. The PEDOT:PSS/PVA blended fibers displayed an actuation response when a voltage was applied in air and the foldable textiles based on the PEDOT:PSS/PVA blended fibers worked as flexible electrodes to detect human heartbeats. The organic conductive fibers can be a platform for lightweight wearable electronics. H. Miura et al./Foldable Textile Electronic Devices Using … ADVANCED ENGINEERING MATERIALS 2014, 16, No. 5

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

“…In addition, other surfactants such as fl uorosurfactant, poly(vinyl alcohol) (PVA), and polyethylene oxide (PEO) as additives have also been studied. [99][100][101] Ahmad et al [ 102 ] prepared the PEDOT:PSS fi lms using the surfactant of sodium dodecyl benzene sulfonate (SDBS) and conductive IL, and the fi lms exhibited good electrical surface conductivity, interlayer spacing, and polymer coating. Wilson et al [ 103 ] investigated the conductivity of the inkjet-printed or spin-coated PEDOT:PSS fi lms as a function of the concentration of DMSO, added as conduction enhancing co-solvent, and Surfynol, added as a surfactant.…”

The temperature-dependent microstructure of PEDOT/PSS films: insights from morphological, mechanical and electrical analyses

“…[1][2][3][4][5][6][7][8][9][10] Poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) is one of the most successful polymers in the family of conductive polymers. 2,11 Great efforts have been devoted to understanding and improving the electrical conductivity of PEDOT/PSS, which was demonstrated to be tailorable in a wide range between 0.1 and 4380 S cm À1 by using solvent treatments.…”

High-ampacity conductive polymer microfibers as fast response wearable heaters and electromechanical actuators

“…11,14,15 Therefore, opportunities to design PEDOT/PSS fibers or wires for specific applications, such as functional textiles, or to increase their sensitivity in general remain outstanding. In a previous study, we investigated the electromechanical actuation properties of low conductivity (PEDOT/PSS)/polyvinyl alcohol fibers, which can generate a maximum actuation stress of 11 MPa at 8 V. 18 However, they feature a low response time (80 s), which leads to a slow stress generation rate (0.14 MPa s 1 ) and a narrow operating frequency window (< 1 Hz). Other conductive polymer fiber-based actuators have also been developed, where their actuations are controlled by oxidationreduction reactions in liquid.…”