• 제목/요약/키워드: Iron(III)tosylate

검색결과 3건 처리시간 0.016초

Study on Poly(3,4-ethylenedioxythiophene) Thin Film Vapour Phase-Polymerized with Iron(III)Tosylate on AcOH-Catalyzed 3-Aminopropyltriethoxysilane Self-Assembled Monolayer

  • Choi, Sangil;Kim, Wondae;Kim, Sungsoo
    • 통합자연과학논문집
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    • 제5권4호
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    • pp.233-236
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    • 2012
  • In this study, PEDOT thin films polymerized with Iron(III)tosylate ($Fe(PTS)_3$) and grown on acetic acid-catalyzed 3-aminopropyltriethoxysilane self-assembled monolayer (APS-SAM) surfaces by VPP method have been investigated. PEDOT thin films were synthesized on APS self-assembled $SiO_2$ wafer surface at two different concentrations (20 wt% and 40 wt%) and growth time (3 and 30 minutes), and then they were compared. PEDOT vapour phase-polymerized with 40 wt% $Fe(PTS)_3$ oxidant completely formed a thin film on acetic acid-catalyzed APS-SAM surface while with 20 wt% $Fe(PTS)_3$ did not at all. It means that the oxidant can be uniformly coated on acetic acid-catalyzed APS-SAM surface at the 40 wt% concentration, which gives rise to the uniform growth of PEDOT thin film on it.

Study on Poly(3,4-ethylenedioxythiophene) Thin Film Vapour Phase-Polymerized with Iron(III)Tosylate on High Quality 3-Aminopropyltriethoxysilane Self-Assembled Monolayer

  • Choi, Sangil;Kim, Wondae;Cho, Sung Jun;Kim, Sungsoo
    • 통합자연과학논문집
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    • 제5권4호
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    • pp.237-240
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    • 2012
  • In this study, PEDOT thin films polymerized with Iron(III)tosylate ($Fe(PTS)_3$) and grown on atomically smooth and highly dense 3-aminopropyltriethoxysilane self-assembled monolayer (APS-SAM) surfaces by VPP method have been investigated. PEDOT thin films were synthesized on APS self-assembled $SiO_2$ wafer surface at two different concentrations (20 wt% and 40 wt%) and growth time (3 and 30 minutes), and then their sheet resistance were measured and compared. PEDOT thin films grown with 20 wt% $Fe(PTS)_3$ oxidant are highly conductive when compared with the film grown with 40 wt% $Fe(PTS)_3$, as ascertained by the measured sheet resistance values down to 0.06 ${\Omega}/cm$. It clearly suggests that 20 wt% is more effective oxidant concentration for VPP than 40 wt% even though the film grown with 40 wt% oxidant has better quality than the film with 20 wt% $Fe(PTS)_3$ does.

Iron(III)-p-toluenesulfonate로 합성된 Poly(3,4-ethylenedioxythiophene)의 전하전달현상에 미치는 유기용매의 영향 (Solvent Effects on the Charge Transport Behavior in Poly(3,4-ethylenedioxythiophene) Synthesized with Iron (III) -p-toluenesulfonate)

  • 박창모;김태영;김원중;김윤상;서광석
    • 폴리머
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    • 제29권4호
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    • pp.363-367
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    • 2005
  • Iron(III)p-toluenesulfonate를 개시제로 한 3,4-ethylenedioxyaiophene(EDOT)의 중합과정시 여러 가지 유기용매를 첨가했을 때 poly(3,4-ethylenedioxythiophene)(PEDOT)의 전하이동특성이 어떻게 변하는지에 대해 연구하였다. 첨가한 유기용매의 종류는 MeOH, EtOH등의 알콜류와 Acetone, MEK등의 케톤류였으며, 직류 전기전도도 측정시 280 K에서 전도도는 MeOH를 첨가한 시료가 19.5 S/cm로 가장 높았으며, MEK를 첨가한 시료는 $2.2{\times}10^{-9}$S/cm로 각기 다른 전도도를 나타내었다. 유기용매 첨가에 따른 전기전도도의 변화를 설명하기 위해 X-ray diffraction(XRD)를 통한 PEDOT의 구조적 변화를 관찰하였으며, 알콜류를 첨가했을 경우 결정화도가 증가하는 반면, 케톤류의 유기용매를 첨가했을 경우에는 무정형 구조를 가지는 것을 관찰하였다. 또한 X-ray photoelectron spectoscopyocpy(XPS)를 이용하여 S(2p) 피크를 분석한 결과 케톤류를 첨가한 시료의 경우 다른 시료에 비해 도핑레벨이 매우 낮음을 관찰하였다. 이는 유기용매와 PEDOT의 상대이온인 p-toluenesulfonate와의 상호작용으로 인한 것으로 중합시 유기용매의 첨가에 따라 PEDOT의 도핑효율 및 구조가 변화하고 결과적으로 전기전도도가 변화하는 것을 확인하였다.