Article
  • Effect of Imidazole and Surfactant on the Opto-Electrical Properties of PEDOT Thin Films via Vapor Phase Polymerization
  • Khadka R, Yim JH
  • 이미다졸과 계면활성제가 기상중합법으로 제조된 PEDOT 박막의 광-전기적 특성에 미치는 영향
  • 카드카 로산, 임진형
Abstract
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.

본 논문은 ferric p-toluenesulfonate를 산화제에 약 염기인 이미다졸과 poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (PEG-PPG-PEG) 계면활성제를 동시 첨가하여 기상중합법으로 제조된 poly(3,4-ethylenedioxythiophene)(PEDOT) 박막의 광-전기적 특성 향상에 대한 것이다. 여러 가지 조건에서 제조된 PEDOT 박 막 특성과 산화제의 첨가제로 사용된 약 염기와 계면활성제의 조합 효과의 상관관계를 규명하고자 하였다. 이미다 졸과 PEG-PPG-PEG로 구성된 첨가제를 사용하여 제조된 PEDOT 박막은 1300 S·cm-1 이상의 전도성을 가졌다. PEG-PPG-PEG계 계면활성제의 분자량이 기상 중합을 이용한 PEDOT 박막의 특성에 미치는 영향도 조사하였다.

Keywords: PEDOT; conductivity; surfactant; imidazole; opto-electrical properties

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2015; 39(3): 461-467

    Published online May 25, 2015

  • 10.7317/pk.2015.39.3.461
  • Received on Sep 30, 2014
  • Accepted on Nov 19, 2014