Influence of PEG‐<i>ran</i>‐PPG Surfactant on Vapour Phase Polymerised PEDOT Thin Films

Fabretto, Manrico; Müller, Michael; Zuber, Kamil; Murphy, Peter

doi:10.1002/marc.200900371

Cited by 53 publications

(46 citation statements)

References 32 publications

(41 reference statements)

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“…Similarly, several experiments have employed PEG-ran-PPG or PEG-PPG-PEG surfactants to improve the conductivity of PEDOT films prepared via atmospheric or vacuum VPP. [29][30][31] To our knowledge, a systematic study of additive combinations consisting of a base inhibitor and a surfactant has not been reported for the VPP-based preparation of highly conductive thin films (>1000 S·cm -1 ). Therefore, we studied the combined effects of a surfactant and base inhibitor with a view to producing homogenously coated uniform PEDOT thin films with enhanced opto-electrical properties.…”

Section: Resultsmentioning

confidence: 99%

“…The surfactantcontaining films were thinner than the pristine sample, and their thickness decreased up to 5 wt% due to the dilution effect. 29 Then, the film thickness slowly increased to 734.5 nm a FTS concentration=30 wt% in 1-butanol; number average molecular weight (M n ) of PEG-PPG-PEG is 5800. b Conductivity was calculated using the equation σ=1/(SR*t), SR is the surface resistance and t is the film thickness.…”

Section: Resultsmentioning

confidence: 99%

“…28 Therefore, the effects of a surfactant, PEG-ran-PPG, were systematically investigated to determine an optimum loading in the FTS oxidant solution for a high quality PEDOT film (conductivity > 700 S·cm -1 ). 29 The addition of the surfactant PEG-PPG-PEG to the FTS oxidant solution was also found to inhibit the deleterious effects of water absorption and prevent the oxidant from forming crystalline structures. 30,31 In this paper, we report our investigations concerning the coaddition of a base inhibitor and a surfactant to the oxidant solution, and attempt to reveal their combined effects on the physicochemical and opto-electrical properties of PEDOT thin films.…”

Section: 폴리머 제39권 제3호 2015년mentioning

confidence: 99%

“…The controlled amount of surfactant was beneficial in preventing the crystallization of the FTS oxidant 29 and providing the necessary amount of water to act as a proton scavenger 31 in order to obtain efficient EDOT polymerization. When excess surfactant is used in the VPP process, a significant amount remains in the PEDOT film as an insulator.…”

Section: 폴리머 제39권 제3호 2015년mentioning

confidence: 99%

“…When excess surfactant is used in the VPP process, a significant amount remains in the PEDOT film as an insulator. 29 This decreases the conductivity of PEDOT films prepared with high surfactant loading (>10 wt%). Thus, the conductivity calculated using the equation stated in the footnote of Table 1 reached a maximum at 5 wt% (244.8 S·cm -1 ), and then tended to decrease up to 20 wt%.…”

Section: 폴리머 제39권 제3호 2015년mentioning

confidence: 99%

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Effect of Imidazole and Surfactant on the Opto-Electrical Properties of PEDOT Thin Films via Vapor Phase Polymerization

Khadka¹,

Yim²

2015

Polymer Korea

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This paper reports the combined effects of the triblock copolymer surfactant poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (PEG-PPG-PEG) and imidazole on the opto-electrical and mechanical properties of poly(3,4-ethylenedioxythiophene) (PEDOT)-based thin films prepared via vapor phase polymerization (VPP) using ferric p-toluenesulfonate as a catalyst. Various PEDOT-based thin films were synthesized using PEG-PPG-PEG and imidazole alone and in combination to compare and correlate their effects on film properties. The improved conductivity of the PEDOT films was higher than 1300 S·cm -1 when the surfactant and imidazole were used together. The PEG-PPG-PEG chain length was also varied to identify the best conditions for the VPP-based preparation of PEDOT thin films.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: 폴리머 제39권 제3호 2015년mentioning

confidence: 99%

Section: 폴리머 제39권 제3호 2015년mentioning

confidence: 99%

Section: 폴리머 제39권 제3호 2015년mentioning

confidence: 99%

See 3 more Smart Citations

Effect of Imidazole and Surfactant on the Opto-Electrical Properties of PEDOT Thin Films via Vapor Phase Polymerization

Khadka¹,

Yim²

2015

Polymer Korea

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Combining Vapor Phase Polymerization and Screen Printing for Printed Electronics on Flexible Substrates

Brooke

Wijeratne

Hübscher

et al. 2022

Adv Materials Technologies

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and have led to several commercial products such as inks, sensors, and displays.Conductive polymers can be synthesized by several methods, each with their own set of advantages and disadvantages. Chemical polymerization is the simplest method, requiring only the reagents necessary for the polymerization and a container, but generally results in poor properties. Electrochemical polymerization is a more controlled polymerization method (via the voltage and current), but requires a problematic three-electrode set up when considering large areas and upscaling. One polymerization technique that has shown promise, both for resulting in good conductive polymer properties and the potential for large area manufacturing, is vapor phase polymerization (VPP). [3,4] VPP uses a liquid oxidant that polymerizes a vapor monomer. The oxidant can be deposited using many different techniques, the most common method is spin coating, which results in very smooth and homogenous layers. [5][6][7][8] Performing VPP on spin-coated oxidant films has been shown to provide conductive polymers of impressive electronic properties and relatively large scale (10 cm 2 ). [9,10] However, its ability to coat one substrate at a time and the material waste makes spin coating unsuitable for hundreds of devices or truly large scale (≈dm 2 − m 2 ).Various deposition methods of the oxidant followed by VPP have been published to push the resolution of patterns possible via dip pen lithography [11] or for increasing the possibility for largescale manufacturing via inkjet printing. [12] However, truly scalable conductive polymer films fabricated by VPP have yet to be shown.Screen printing is one industrial standard deposition technique that can be truly scalable in either a sheet-by-sheet or roll-to-roll process. This technique allows pattern resolutions of at least 100 µm (with 100 µm spacing) and the ink deposition is performed within seconds. Screen printing has been used extensively for display, [13] sensor, [14] energy storage, [15] and transistor [16] applications due to the ability of over-printability, alignment at high accuracy, and registration marks allowing layer-by-layer deposition of functional inks.The combination of screen printing and the VPP process will permit all-printed devices to be fabricated at high resolution, which opens the possibilities of commercialization due to the cost-effective deposition technique. Previous reports combining Large area manufacturing of printed electronic components on ~A4-sized substrates is demonstrated by the combination of screen printing and vapor phase polymerization (VPP) into poly(3,4-ethylenedioxythiophene) (PEDOT).The oxidant layer required for the polymerization process is screen printed, and the resulting conductive polymer patterns are manufactured at high resolution (100 µm). Successful processing of several common oxidant species is demonstrated, and the thickness can be adjusted by altering the polymerization time. By comparing the polymer films of this work to a commercial PEDOT:PSS (PEDOT d...

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Enhancement of Conductivity and Thermoelectric Property of PEDOT:PSS via Acid Doping and Single Post‐Treatment for Flexible Power Generator

Wang

Sun

et al. 2018

Advanced Sustainable Systems

115

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Poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a promising thermoelectric (TE) material. Nonetheless, its practical application is hindered by the poor TE properties of the pristine PEDOT:PSS and complicated treatment procedures. Enhancing its electrical conductivity is a key step for the improvement of TE properties. Here, a simple method is introduced to enhance the conductivity by adding sulfonic acid into the PEDOT:PSS solution. A systematic study of representative sulfonic acids with various functional groups suggests that steric effect induced by the functional groups has remarkable impact on the conductivity. The highest conductivity of 1996 S cm−1 is observed in benzenesulfonic acid‐doped PEDOT:PSS films. The doped PEDOT:PSS films are further treated with dimethyl sulfoxide and hydrazine successively or synchronously to tune the oxidation level. A maximum power factor (PF) of 203.1 µW m−1 K−2 is obtained. The high PF of treated PEDOT:PSS allows the realization of a flexible thermoelectric generator, which can generate 4.6 mV thermovoltage when attached on human skin. It also shows a good linear response with the increase of temperature difference; thus, it can be potentially used as a flexible thermal sensor. The facile fabrication process and good TE performance provide PEDOT:PSS an opportunity in wearable electronics.

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

Cited by 53 publications

References 32 publications

Effect of Imidazole and Surfactant on the Opto-Electrical Properties of PEDOT Thin Films via Vapor Phase Polymerization

Effect of Imidazole and Surfactant on the Opto-Electrical Properties of PEDOT Thin Films via Vapor Phase Polymerization

Combining Vapor Phase Polymerization and Screen Printing for Printed Electronics on Flexible Substrates

Enhancement of Conductivity and Thermoelectric Property of PEDOT:PSS via Acid Doping and Single Post‐Treatment for Flexible Power Generator

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