Chemical cross-linking of conducting poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) using poly(ethylene oxide) (PEO)

Huang, Tsang-Min; Batra, Saurabh; Hu, Jiahuan; Miyoshi, Toshikazu; Çakmak, Mükerrem

doi:10.1016/j.polymer.2013.09.046

Cited by 59 publications

(65 citation statements)

References 22 publications

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“…In this context, the most widely studied CP is PEDOT:PSS (poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate), which is a polymer mixture comprising doped and conducting PEDOT + and polyanionic PSS − . This material bears with it several limitations, as it cannot be easily synthetically modified to fine‐tune its properties, requires cross‐linking agents to prevent delamination and redispersion in water, and often involves the use of cosolvents and acid treatments to optimize transport properties . When used in OECTs, PEDOT:PSS exists in its doped state at zero gate voltage, affording a depletion mode device that is turned “on” in its default state and is therefore not amenable to efficient power consumption.…”

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confidence: 99%

Balancing Charge Storage and Mobility in an Oligo(Ether) Functionalized Dioxythiophene Copolymer for Organic‐ and Aqueous‐ Based Electrochemical Devices and Transistors

et al. 2018

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This work presents a soluble oligo(ether)-functionalized propylenedioxythiophene (ProDOT)-based copolymer as a versatile platform for a range of high-performance electrochemical devices, including organic electrochemical transistors (OECTs), electrochromic displays, and energy-storage devices. This polymer exhibits dual electroactivity in both aqueous and organic electrolyte systems, redox stability for thousands of redox cycles, and charge-storage capacity exceeding 80 F g −1 . As an electrochrome, this material undergoes full colored-to-colorless optical transitions on rapid time scales (<2 s) and impressive electrochromic contrast (Δ%T > 70%). Incorporation of the polymer into OECTs yields accumulation-mode devices with an I ON/OFF current ratio of 10 5 , high transconductance without post-treatments, as well as competitive hole mobility and volumetric capacitance, making it an attractive candidate for biosensing applications. In addition to being the first ProDOT-based OECT active material reported to date, this is also the first reported OECT material synthesized via direct(hetero)arylation polymerization, which is a highly favorable polymerization method when compared to commonly used Stille cross-coupling. This work provides a demonstration of how a single ProDOTbased polymer, prepared using benign polymerization chemistry and functionalized with highly polar side chains, can be used to access a range of highly desirable properties and performance metrics relevant to electro chemical, optical, and bioelectronic applications. Electroactive Polymers[+] Present address:

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confidence: 99%

Balancing Charge Storage and Mobility in an Oligo(Ether) Functionalized Dioxythiophene Copolymer for Organic‐ and Aqueous‐ Based Electrochemical Devices and Transistors

et al. 2018

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“…In the AFM phase image analysis of the PEO/ PEDOT:PSS composite films (Figure 2d), the hard domains appeared as brighter regions (PEDOT-rich) while the soft domains appeared as darker regions (PSS-or PEO-rich). [12] The PEO/PEDOT:PSS film featured many more PEO-rich domains (domain sizes and elongated structures were ≈50-100 nm) at its surfaces than did the PEDOT:PSS films without PEO (PEO-rich domain sizes were ≈20-30 nm) (Figure 2c,d); both the aligned and random nanofibers provided results to similar those reported previously, with the separation of the excess-PSS domain surrounded by a continuous PEDOT:PSS phase (Figure 2e-h). [26] In contrast to the PEO/PEDOT:PSS flat films, although AFM phase images can provide information about phase separation occurred at the nanofiber surfaces, the phase image signal of PEO/PEDOT:PSS nanofibers may be affected by such factors as surface roughness and surface forces.…”

Section: Phase Separation Surface Composition and Electrical Propermentioning

confidence: 99%

Poly(3,4‐ethylenedioxythiophene) Polymer Composite Bioelectrodes with Designed Chemical and Topographical Cues to Manipulate the Behavior of PC12 Neuronal Cells

Tsai

She

et al. 2019

Adv Materials Inter

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Controlled extracellular chemical and topographical cues can generate physicochemical changes that influence the proliferation and differentiation of neural cells; external electrical stimulation (ES) via conductive bioelectrodes can promote neural differentiation by increasing neurite outgrowth. Rat pheochromocytoma (PC12) cells are used as a neuron‐like model cells to explore the possibility of using a well‐designed poly(ethylene oxide) (PEO)/poly(3,4‐ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) blend solution to fabricate functional bioelectrodes presenting biological fouling/antifouling surfaces, thereby regulating the cell adhesion, proliferation, and differentiation properties. In this study, it is found that a flat PEO/PEDOT:PSS composite film fabricates through spin‐coating, operates through a contact repulsion mechanism that limits cell attachment and proliferation; in contrast, the aligned and random PEO/PEDOT:PSS nanofibers fabricates through electrospinning promoted neuron adhesion efficiently and allows manipulation of the cell morphology. Furthermore, ES of PC12 cells is performed to investigate the influence of the conductive random and aligned PEO/PEDOT:PSS composite nanofiber mats on the enhancement of neurite outgrowth, as well as the relative gene expression of Nestin, Tuj1, and MAP2. Therefore, combining this unique PEDOT:PSS blend solution with various fabrication processes appears to be a facile approach toward bioelectronic interface coatings displaying tunable surface properties for manipulating the cellular behavior of neurons during ES.

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“…Here, for the temperature dependence of the films prepared from PH1000 solution added by PEG-TmDD, we propose the hypothesis that the PEG-TmDD decomposes into EG and TmDD during the thermal annealing, as shown in the following, where the PEG has been reported to decompose during thermal annealing under the acidic condition [47,48]:…”

Section: Tablementioning

confidence: 99%

A nonionic surfactant simultaneously enhancing wetting property and electrical conductivity of PEDOT:PSS for vacuum-free organic solar cells

Meng

Tong

et al. 2015

Solar Energy Materials and Solar Cells

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Chemical cross-linking of conducting poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) using poly(ethylene oxide) (PEO)

Cited by 59 publications

References 22 publications

Balancing Charge Storage and Mobility in an Oligo(Ether) Functionalized Dioxythiophene Copolymer for Organic‐ and Aqueous‐ Based Electrochemical Devices and Transistors

Balancing Charge Storage and Mobility in an Oligo(Ether) Functionalized Dioxythiophene Copolymer for Organic‐ and Aqueous‐ Based Electrochemical Devices and Transistors

Poly(3,4‐ethylenedioxythiophene) Polymer Composite Bioelectrodes with Designed Chemical and Topographical Cues to Manipulate the Behavior of PC12 Neuronal Cells

A nonionic surfactant simultaneously enhancing wetting property and electrical conductivity of PEDOT:PSS for vacuum-free organic solar cells

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