Plasma Deposition of Thiophene Derivatives Under Atmospheric Pressure

Dams, Roel; Vangeneugden, Dirk; Vanderzande, Dirk

doi:10.1002/cvde.200606483

Cited by 39 publications

(44 citation statements)

References 28 publications

(25 reference statements)

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“…It is known that low conductivity PEDOT films occur as a result of significant levels of oligomers being present and/or disrupted conjugation. [26,27] Short polymer chains are marked by a broad peak located at 3 110 cm…”

Section: Resultsmentioning

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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Section: Resultsmentioning

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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“…1 715 and 1 630 or 3 400 cm À1 , which have been attributed to the cleavage of the dioxane ring and formation of carbonyl groups (C --O) and hydroxy groups (O-H), respectfully, as reported by other researchers. [22,27,33] This is a strong indication that the reaction proposed here (Scheme 1) is most likely occurring, with an insignificant, if any, proportion of unwanted reactions taking place.…”

mentioning

confidence: 80%

“…become larger if the relative amount of short-chained PEDOT increased. Dams et al [33] have stated that the presence of this peak indicates a polymer that has a low molecular weight. Therefore, the absence of any peaks at approx.…”

mentioning

confidence: 98%

High Conductivity PEDOT Using Humidity Facilitated Vacuum Vapour Phase Polymerisation

Fabretto

Zuber

Hall

et al. 2008

Macromol. Rapid Commun.

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The synthesis of high conductivity poly(3,4‐ethylenedioxythiophene) (PEDOT) films using vacuum vapour phase polymerisation is reported. Water vapour is introduced into the chamber and results suggest that it acts as a proton scavenger during polymerisation. Process optimisation leads to PEDOT films that have high conductivity and a blue‐black appearance. Poor quality films have lower conductivity and a characteristic greenish colour. UV‐vis‐NIR spectra show that poor PEDOT films are characterised by higher absorption in the UV‐vis region and an absorption plateau in the NIR region, which suggests an increased level of disrupted conjugation along the polymer backbone or higher oligomer content. Conversely, high quality PEDOT is characterised by an extended NIR absorption tail and lower absorption in the UV‐vis region.magnified image

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“…Moreover, additional new units are likely created and intercalated in the organic coating structure. This complex structure is a considerable drawback for applications such as responsive or conductive layers, which require linear polymeric structures …”

Section: Introductionmentioning

confidence: 99%

Atmospheric Pressure Plasma Initiated Chemical Vapor Deposition Using Ultra‐Short Square Pulse Dielectric Barrier Discharge

Boscher¹,

Hilt²,

Duday³

et al. 2014

Plasma Processes & Polymers

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A simple, efficient and scalable method for the atmospheric pressure plasma initiated chemical vapor deposition of conventional polymer is demonstrated. Ultra‐short square pulse dielectric barrier discharge, which allows high deposition rates even for plasma duty cycle as low as 0.01%, is used to deposit a glycidyl methacrylate (GMA) polymer layer. The polymer structure of the thin films is evidenced by matrix‐assisted laser desorption/ionization high‐resolution mass spectrometry. Polymer molecular weights up to 30 000 g mol−1 are found by size exclusion chromatography (SEC), highlighting the suitability of the plasma initiated CVD method for the deposition of polymer layers.

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Plasma Deposition of Thiophene Derivatives Under Atmospheric Pressure

Cited by 39 publications

References 28 publications

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

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

High Conductivity PEDOT Using Humidity Facilitated Vacuum Vapour Phase Polymerisation

Atmospheric Pressure Plasma Initiated Chemical Vapor Deposition Using Ultra‐Short Square Pulse Dielectric Barrier Discharge

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