Highly conductive PEDOT:PSS films by post-treatment with dimethyl sulfoxide for ITO-free liquid crystal display

Chou, Tsu-Ruey; Chen, Serena H.; Chiang, Yi-Te; Lin, Yi‐Ting; Chao, Chih‐Yu

doi:10.1039/c5tc00276a

Cited by 158 publications

(103 citation statements)

References 42 publications

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“…1d). Nonetheless, this metric is still very high in comparison with the other values reported in the literature [37][38][39] . Therefore, the robustness of the highly crystalline fibrillar nanostructures is responsible for the long-term electrical, optical, and mechanical stabilities of c-PEDOT:PSS in aqueous, ionic environments 34 .…”

Section: Resultsmentioning

confidence: 47%

High-performance, polymer-based direct cellular interfaces for electrical stimulation and recording

Kim

et al. 2018

NPG Asia Mater

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Due to the trade-off between their electrical/electrochemical performance and underwater stability, realizing polymerbased, high-performance direct cellular interfaces for electrical stimulation and recording has been very challenging. Herein, we developed transparent and conductive direct cellular interfaces based on a water-stable, high-performance poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) film via solvent-assisted crystallization. The crystallized PEDOT:PSS on a polyethylene terephthalate (PET) substrate exhibited excellent electrical/electrochemical/ optical characteristics, long-term underwater stability without film dissolution/delamination, and good viability for primarily cultured cardiomyocytes and neurons over several weeks. Furthermore, the highly crystallized, nanofibrillar PEDOT:PSS networks enabled dramatically enlarged surface areas and electrochemical activities, which were successfully employed to modulate cardiomyocyte beating via direct electrical stimulation. Finally, the highperformance PEDOT:PSS layer was seamlessly incorporated into transparent microelectrode arrays for efficient, realtime recording of cardiomyocyte action potentials with a high signal fidelity. All these results demonstrate the strong potential of crystallized PEDOT:PSS as a crucial component for a variety of versatile bioelectronic interfaces.

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Section: Resultsmentioning

confidence: 47%

High-performance, polymer-based direct cellular interfaces for electrical stimulation and recording

Kim

et al. 2018

NPG Asia Mater

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“…where A is the absorbance, 3 is the absorption coefficient, b is the distance that light travels through the material (the path length), and c is the concentration of the absorbing species in the material. Since the absorbance of PEDOT:PSS at 550 nm is predominantly affected by PEDOT, 28 the change in the concentration of PEDOT:PSS together with the time taken for absorbance can be thought of as the amount of EDOT used in the polymerization process. 29,30 As a result, the EDOT-to-PEDOT polymerization rate can be calculated using UV-Vis-NIR data.…”

Section: Resultsmentioning

confidence: 99%

Improvement of PEDOT:PSS linearity via controlled addition process

et al. 2019

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“…The binary nanocomposite coating gives lower electrical resistivity than ternary epoxy‐blended nanocomposite coating. This is probably due to the fact that PEDOT:PSS is a conductive polymer (resistivity down to 10 −3 Ω cm) while the insulating epoxy resin increases the overall resistivity of the coating. The insulating epoxy might be also placed between conductive fillers and leads to an increase of the fillers' contact resistance.…”

Section: Resultsmentioning

confidence: 99%

Electrically Conductive Silver Nanoparticles‐Filled Nanocomposite Materials as Surface Coatings of Composite Structures

et al. 2016

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Silver nanoparticles-filled nanocomposite materials are fabricated and used as electrically conductive coatings for aerospace composite structures. Silver nanoparticles are first synthesized, then mixed with polymer solutions, and applied onto the surface of carbon fiber composite substrates either by casting or spraying technique. Two design strategies are studied: the reduction of nanofillers contact resistance using a conductive polymer as binder and the addition of a second polymer to fabricate a ternary biphasic nanocomposite for the further improvement of mechanical resistance of the coatings. The coatings are then annealed at different temperatures up to 200 C and characterized using various techniques in order to evaluate their morphology, electrical resistivity, and mechanical performance. The thermal annealing considerably improves the adhesion of the coatings to the composite substrates as well as the scratch resistance of the coatings. A significant improvement (approx. six orders) of electrical properties is achieved for a %10 mm-thick coating film after the thermal annealing. The best results are achieved with silver nanoparticles mixed with the conductive polymer binder with the maximum resistivity of 4.2 Â 10 À3 V g cm À2 . The conductivity achieved here is fairly close to that values required in order for the materials to be used for coating of composite structures in potential aerospace applications such as electromagnetic interference shielding and lighting strike protection.

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Highly conductive PEDOT:PSS films by post-treatment with dimethyl sulfoxide for ITO-free liquid crystal display

Cited by 158 publications

References 42 publications

High-performance, polymer-based direct cellular interfaces for electrical stimulation and recording

High-performance, polymer-based direct cellular interfaces for electrical stimulation and recording

Improvement of PEDOT:PSS linearity via controlled addition process

Electrically Conductive Silver Nanoparticles‐Filled Nanocomposite Materials as Surface Coatings of Composite Structures

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