• Title/Summary/Keyword: poly(3,4-ethylenedioxythiophene)

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Electrical property of organic solvent dispersible poly(3,4-ethylenedioxythiophene) / polymeric ionic liquid complex (유기용제 분산형 poly(3,4-ethylenedioxythiophene) / 고분자 이온성 액체 복합체의 전기적 특성)

  • Lee, Tae-Hee;Kim, Tae-Young;Duong, Ha Thi Thuy;Suh, Min-Won;Kim, Jong-Eun;Suh, Kwang-S.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.06a
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    • pp.146-147
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    • 2008
  • Poly(3,4-ethylenedioxythiophene) (PEDOT) / poly(1-vinyl-3-ethylimidazolium bis(trifluoromethane sulfonyl)imide) (poly(ViEtIm $^+TFSI^-$) complex was prepared for organic solvent dispersible conductive nano particles. By molar ratio, PEDOT / poly(ViEtIm $^+TFSI^-$) complex was polymerized and dispersed in propylene carbonate by 1 wt%. The maximum conductivity of the complexes was $1.2\times10^{-1}$ S/cm.

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Preparation and Characterization of Poly(3,4-ethylenedioxythiophene) nanoparticles (Poly(3,4-ethylenedioxythiophene) 나노입자의 제조 및 연구)

  • Park, Jeong-Wan;Han, Moon-Gyu;Im, Seong-Soon
    • Proceedings of the Korean Fiber Society Conference
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    • 2001.10a
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    • pp.17-20
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    • 2001
  • Poly(3,4-ethylenedioxythiophene) (PEDOT), one of the most successful conducting polymers in the market place, has been attracting much interest because of its excellent environmental stability, high conductivity and transparency in thin, oxidized state. Since PEDOT was first synthesized in early 1990s by Jonas et al., many studies on PEDOT have been done to solve its insoluble property in any organic solvents and to extend its application fields[1]. (omitted)

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PET Fabric/Poly(3,4-ethylenedioxythiophene) Composite as Polymer Electrode in Redox Supercapacitor

  • Cho, Seung-Hyun;Joo, Jin-Soo;Jung, Bo-Ram;Ha, Tae-Min;Lee, Jun-Young
    • Macromolecular Research
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    • v.17 no.10
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    • pp.746-749
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    • 2009
  • Poly(ethylene terephthalate) (PET) fabric/poly(3,4-ethylenedioxythiophene) (PEDOT) composite with stable and high electrochemical activity was fabricated by chemical and electrochemical polymerization of 3,4-ethylenedioxythiophene (EDOT) on a PET fabric in sequence. Effects of polymerization conditions on the following characteristics of the composite were studied: electrical conductivity and surface morphology. The electrochemical properties were also investigated by cyclic voltammetry and cyclic charge/discharge experiments. The specific volume resistivity, electrical conductivity and specific discharge capacitance of the composite were 0.034 $\Omega-cm$ and 25 S/cm, and 54.5 F/g, respectively.

Effect of HF and Plasma Treated Glass Surface on Vapor Phase-Polymerized Poly(3,4-ethylenedioxythiophene) Thin Film : Part I

  • Lee, Joonwoo;Kim, Sungsoo
    • Journal of Integrative Natural Science
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    • v.6 no.4
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    • pp.211-214
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    • 2013
  • In this study, in order to investigate how consecutive treatments of glass surface with HF acid and water vapor/Ar plasma affect the quality of 3-aminopropyltriethoxysilane self-assembled monolayer (APS-SAM), poly(3,4-ethylenedioxythiophene) (PEDOT) thin films were vapor phase-polymerized immediately after spin coating of FeCl3 and poly-urethane diol-mixed oxidant solution on the monolayer surfaces prepared at various treatment conditions. For the film characterization, various poweful tools were used, e.g., FE-SEM, an optical microscope, four point probe, and a contact angle analyzer. The characterization revealed that HF treatment is not desirable for the synthesis of a high quality PEDOT thin film via vapor phase polymerization method. Rather, sole treatment with plasma noticeably improved the quality of APS-SAM on glass surface. As a result, a highly dense and smooth PEDOT thin film was grown on uniform oxidant film-coated APS monolayer surface.

Development of High-Quality Poly(3,4-ethylenedioxythiophene) Electrode Pattern Array Using SC1 Cleaning Process (SC1 세척공정을 이용한 고품질 Poly(3,4-ethylenedioxythiophene) 전극 패턴 어레이의 개발)

  • Choi, Sangil;Kim, Wondae;Kim, Sungsoo
    • Journal of Integrative Natural Science
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    • v.4 no.4
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    • pp.311-314
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    • 2011
  • Application of self-assembled monolayers (SAMs) to the fabrication of organic thin film transistor has been recently reported very often since it can help to provide ohmic contact between films as well as to form simple and effective electrode pattern. Accordingly, quality of these ultra-thin films is becoming more imperative. In this study, in order to manufacture a high quality SAM pattern, a hydrophobic alkylsilane monolayer and a hydrophilic aminosilane monolayer were selectively coated on $SiO_2$ surface through the consecutive procedures of a micro-contact printing (${\mu}CP$) and dip-coating methods under extremely dry condition. On a SAM pattern cleaned with SC1 solution immediately after ${\mu}CP$, poly(3,4-ethylenedioxythiophene) (PEDOT) source and drain electrode array were very selectively and nicely vapour phase polymerized. On the other side, on a SC1-untreated SAM pattern, PEDOT array was very poorly polymerized. It strongly suggests that the SC1 cleaning process effectively removes unwanted contaminants on SAM pattern, thereby resulting in very selective growth of PEDOT electrode pattern.

Selective Vapor-Phase Deposition of Conductive Poly(3,4-ethylenedioxythiophene) Thin Films on Patterned FeCl3 Formed by Microcontact Printing

  • Lee, Bo H.;Cho, Yeon H.;Shin, Hyun-Jung;Kim, Jin-Yeol;Lee, Jae-gab;Lee, Hai-won ;Sung, Myung M.
    • Bulletin of the Korean Chemical Society
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    • v.27 no.10
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    • pp.1633-1637
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    • 2006
  • We demonstrate a selective vapor-phase deposition of conductive poly(3,4-ethylenedioxythiophene) (PEDOT) thin films on patterned $FeCl_3$. The PEDOT thin films were grown on various substrates by using the vapor-phase polymerization of ethylenedioxythiophene (EDOT) with $FeCl_3$ catalytic layers at 325 K. The selective deposition of the PEDOT thin films using vapor-phase polymerization was accomplished with patterned $FeCl_3$ layers as templates. Microcontact printing was done to prepare patterned $FeCl_3$ on polyethyleneterephthalate (PET) substrates. The selective vapor-phase deposition is based on the fact that the PEDOT thin films are selectively deposited only on the regions exposing $FeCl_3$ of the PET substrates, because the EDOT monomer can be polymerized only in the presence of oxidants, such as $FeCl_3$, Fe($CIO_4$), and iron(II) salts of organic acids/inorganic acids containing organic radicals.

Effect of HF and Plasma Treated Glass Surface on Vapor Phase-Polymerized Poly(3,4-ethylenedioxythiophene) Thin Film : Part II

  • Lee, Joonwoo;Kim, Sungsoo
    • Journal of Integrative Natural Science
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    • v.6 no.4
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    • pp.215-219
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    • 2013
  • In this study, in order to investigate how consecutive treatments of glass surface with HF acid and water vapor/Ar plasma affect the quality of 3-aminopropyltriethoxysilane self-assembled monolayer (APS-SAM), poly(3,4-ethylenedioxythiophene) (PEDOT) thin films were vapor phase-polymerized immediately after spin coating of FeCl3 and poly-urethane diol-mixed oxidant solution on the monolayer surfaces prepared at various treatment conditions. For the film characterization, various poweful tools were used, e.g., FE-SEM, an optical microscope, four point probe, and a contact angle analyzer. The characterization revealed that a well prepared APS-SAM on a glass surface treated with water vapor/Ar plasma is very useful for uniform coating of FeCl3 and DUDO mixed oxidant solution, regardless of HF treatment. On the other hand, a bare glass surface without APS-SAM but treated with HF and water vapor/Ar plasma generally led to a very poor oxidant film. As a result, PEDOT films vapor phase-polymerized on APS-SAM surfaces are far superior to those on bare glass surfaces in the quality and electrical characteristics aspects.