Electrically controlled colour-changing textiles using the resistive heating properties of PEDOT nanofibers

Laforgue, Alexis

doi:10.1039/c0jm02307h

Cited by 51 publications

(32 citation statements)

References 30 publications

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“…Different properties such as electrical conduction [1], flame resistance [2], self-cleaning [3], thermal regulation [4], color change [5], solar energy production [6], photonic [7], antimicrobial [8], UV protecting [9] or even catalysis [10] have been reported. Electrical conduction has attracted special attention in the development of antistatic or smart textiles [1].…”

Section: Introductionmentioning

confidence: 99%

Conducting fabrics of polyester coated with polypyrrole and doped with graphene oxide

et al. 2015

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Keywords:Polypyrrole Graphene oxide Conducting fabric X-ray photoelectron spectroscopy (XPS) Scanning electrochemical microscopy (SECM) Electrochemical impedance spectroscopy (EIS) A B S T R A C T Polyester (PES) has been coated with polypyrrole (PPy) to produce conducting fabrics. Graphene oxide (GO) has been used in different concentrations (10, 20 and 30% weight) as counter ion to neutralize the positive charges of the PPy structure. Fourier transform infrared spectroscopy with attenuated total reflection (FTIR-ATR), energy dispersive X-ray (EDX) and X-ray photoelectron spectroscopy (XPS) of the PPy/GO powders corroborated the incorporation of GO as counter ion due to the presence of O in the EDX spectrum, as well as an excess of C, arising from GO contribution. The doping level (N + /N) decreased with the GO content. Field emission scanning electron microscopy (FESEM) showed the formation of the PPy/GO coating and the incorporation of GO in the composite. Electrochemical impedance spectroscopy (EIS) in solid state and solution, cyclic voltammetry (CV) and scanning electrochemical microscopy (SECM) were used to test the electrical properties and electroactivity of the fabrics. There was a decrease in the electrical properties and electroactivity as the GO content increased. The conductivity of the fabrics could be tuned by varying the GO content.

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Section: Introductionmentioning

confidence: 99%

Conducting fabrics of polyester coated with polypyrrole and doped with graphene oxide

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Photocatalytic fabrics based on reduced graphene oxide and TiO2 coatings

Molina

Fernandes

Fernández

et al. 2015

Materials Science and Engineering: B

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a b s t r a c tThe purpose of this work is to obtain photocatalytic fabrics based on reduced graphene oxide (RGO) and TiO 2 coatings on polyester fabrics. The influence of the applied number of RGO coatings on properties such as light absorption, conductivity, electroactivity and photocatalytic properties of the fabrics was established. An improvement of these properties with the number of RGO coatings applied was obtained. FESEM, EDX, XPS and FTIR-ATR showed the incorporation of the TiO 2 nanoparticles on the fabrics. FTIR-ATR showed the formation of a bidentate carboxylic ligand with titanium atoms. The photocatalytic properties of the fabrics were tested with Rhodamine B dye solutions. Photocatalytic efficiency increased with the number of RGO coatings, due to the increased light absorption, and better electrical properties. The charge transfer resistance (R ct ) and its time constant ( ) decreased, indicating a better electron transfer which helps to increase the lifetime of the pair electron/hole.

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“…Some other PEDOT based heaters, such as PEDOT/PSS film and PEDOT nanofiber mat, have a response time several times longer than our PE-DOT/PSS fibers due to their low conductivities. 11,51 The fast response of PEDOT/PSS fibers is ascribed to the small diameter and a direct measurement without any substrate attached to the fibers. To summarize, the merit of PEDOT/PSS fibers as heaters lies in (1) very fast response which is comparable with metal wires; (2) low density, high conductivity, high flexibility, stretchability and better tolerance to frequent bending and contact as compared to carbon fibers and metallic wires 54 ; and (3) good spinnability for directly co-spinning with nonconductive polyester fibers from different nozzles, which can be easily twisted and woven into textiles for the application of wearable heaters.…”

Section: Electrothermal Responsementioning

confidence: 99%

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

et al. 2016

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CitationHigh-ampacity conductive polymer microfibers as fast response wearable heaters and electromechanical actuators 2016, 4 (6) Conductive fibers with enhanced physical properties and functionalities are needed for a diversity of electronic devices. Here, we report very high performance in the thermal and mechanical response of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) microfibers when subjected to an electrical current. These fibers were made by combining hot-drawing assisted wetspinning process with ethylene glycol doping/de-doping can work at a high current density as high as 1.8 ⇥ 10 4 A cm 2 , which is comparable to that of carbon nanotube fibers. Their electrothermal response was investigated using optical sensors and verified to be as fast as 63 C s 1 and is comparable with that of metallic heating elements (20-50 C s 1 ). We investigated the electromechanical actuation resulted from the reversible sorption/desorption of moisture controlled by electro-induced heating.Results revealed an improvement of several orders of magnitudes compared to other linear conductive polymer-based actuators in air. Specifically, the fibers we designed here have a rapid stress generation rate (> 40 MPa s 1 ) and a wide operating frequency range (up to 40 Hz). These fibers have several characteristics including fast response, low-driven voltage, good repeatability, long cycle life and high energy efficiency, favoring their use as heating elements on wearable textiles and as artificial muscles for robotics.

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Electrically controlled colour-changing textiles using the resistive heating properties of PEDOT nanofibers

Cited by 51 publications

References 30 publications

Conducting fabrics of polyester coated with polypyrrole and doped with graphene oxide

Conducting fabrics of polyester coated with polypyrrole and doped with graphene oxide

Photocatalytic fabrics based on reduced graphene oxide and TiO2 coatings

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

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