Electrochemical synthesis of poly(3,4-ethylenedioxythiophene) nanotubes towards fast window-type electrochromic devices

Cho, Seung Il; Xiao, Rui; Lee, Sang Bok

doi:10.1088/0957-4484/18/40/405705

Cited by 47 publications

(43 citation statements)

References 36 publications

(47 reference statements)

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“…Recently, a fast color-switching electrochromic device based on nanotubular PEDOT was demonstrated. [35,[115][116][117] The long, thin-walled PEDOT nanotubes provide short diffusion pathways for counterions which result in redox switching times of less than 10 ms. Electrochromic devices constructed from this material display strong coloration and can be placed on a flexible support. Depending on the nature of the hard-template used for the synthesis of PEDOT nanotubes, either reflectance or window-type electrochromic devices can be made.…”

Section: Electrochromicsmentioning

confidence: 99%

One‐Dimensional Conducting Polymer Nanostructures: Bulk Synthesis and Applications

2009

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This Progress Report provides a brief overview of current research activities in the field of one‐dimensional (1D) conducting polymer nanostructures. The synthesis, properties, and applications of these materials are outlined with a strong emphasis on recent literature examples. Chemical methods that can produce 1D nanostructures in bulk quantities are discussed in the context of two different strategies: 1) procedures that rely on a nanoscale template or additive not inherent to the polymer and 2) those that do not. The different sub‐classifications of these two strategies are delineated and the virtues and vices of each area are discussed. Following this discussion is an outline of the properties and applications of 1D conducting polymer nanostructures. This section focuses on applications in which nanostructured conducting polymers are clearly advantageous over their conventional counterparts. We conclude with our perspective on the main challenges and future research directions for this new class of nanomaterials. This Progress Report is not intended as a comprehensive review of the field, but rather a summary of select contributions that we feel will provide the reader with a strong basis for further investigation into this fast emerging field.

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Section: Electrochromicsmentioning

confidence: 99%

One‐Dimensional Conducting Polymer Nanostructures: Bulk Synthesis and Applications

2009

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“…[2][3][4] Furthermore, the polymers can be applied/processed/synthesized in a variety of different ways further increasing their utility. [5,6] By way of example, synthesis techniques such as in situ electro-polymerization, [7] vapor-phase polymerization (VPP), [8] or wet-chemical synthesis [9] are all commonly used. If the polymer is not synthesized in situ, application to a donor substrate for device manufacture or further fundamental research can be as simple as using deposition techniques such as spin or spray coating.…”

Section: Introductionmentioning

confidence: 99%

Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey

Fabretto

Zuber

Jariego-Moncunill

et al. 2011

Macro Chemistry & Physics

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PEDOT is one of the most frequently studied conducting polymers in literature but values for optical transmission and electrical conductivity vary greatly. Therefore measurement protocols are examined and insights are suggested into why the protocols themselves may lead to differences. Reported PEDOT conductivity is the result of contact and non‐contact film thickness and four‐point probe measurements. The soft nature of PEDOT implies that any contact method must be executed with extreme care as values of conductivity ranging from 780 to 2 775 S · cm−1 can be obtained. Similarly, variations in the optical minimum, maximum, and transmission range are found based on different switching voltage protocols. The results present here highlight the need for explicitly stating the measurement protocol used.magnified image

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“…[13] The method is hard to control as the conducting polymer may form flocculants during the process and great skill is required to obtain homogenous films. [14] Alternatively, electro-polymerisation [15,16] has been used to produce polymer films. Two electrodes are inserted into a cell containing a solution of monomer and electrolyte, and a voltage is cycled across the cell.…”

Section: Introductionmentioning

confidence: 99%

Influence of PEG‐ran‐PPG Surfactant on Vapour Phase Polymerised PEDOT Thin Films

Fabretto

Müller

Zuber

et al. 2009

Macromol. Rapid Commun.

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The oxidant, Fe(III) tosylate, was used in the vapour phase polymerisation (VPP) of PEDOT. The amphiphilic co-polymer poly(ethylene glycol-ran-propylene glycol) was added and its influence examined. Both the PEDOT conductivity and optical contrast range increased with the inclusion of the co-polymer, with the maximum being recorded at 4 wt.-%. Loadings higher than this resulted in a systematic decrease in both conductivity and optical contrast. Evidence indicates that in addition to the beneficial anti-crystallisation effect to the oxidant layer, the co-polymer also reduces the effective reactivity of the oxidant, as demonstrated by slower polymerisation rates. Confirmation of the change in polymerisation rate was obtained using a quartz crystal microbalance (QCM). The slower polymerisation rate results in higher conductivity and optical contrast; however, XPS data confirmed that the co-polymer remained within the PEDOT film post-washing and this result explains why the performance decreases at high surfactant loadings.

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Electrochemical synthesis of poly(3,4-ethylenedioxythiophene) nanotubes towards fast window-type electrochromic devices

Cited by 47 publications

References 36 publications

One‐Dimensional Conducting Polymer Nanostructures: Bulk Synthesis and Applications

One‐Dimensional Conducting Polymer Nanostructures: Bulk Synthesis and Applications

Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey

Influence of PEG‐ran‐PPG Surfactant on Vapour Phase Polymerised PEDOT Thin Films

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