• 제목/요약/키워드: 낮은 밴드갭을 갖는 고분자

검색결과 2건 처리시간 0.016초

공액 전도성 고분자와 이온성 액체 간에 상호작용 연구 (Interaction of Conjugated Conducting Polymer with Ionic Liquids)

  • 김중일;김도영;김인태
    • 한국응용과학기술학회지
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    • 제31권3호
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    • pp.337-344
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    • 2014
  • 이 논문은 온도차에 따라 변화되는 이온성 액체와 낮은 밴드갭을 갖는 고분자인 poly(2-heptadecyl-4-vinylthieno[3,4-d]thiazole)(PHVTT) 간의 상호작용 및 고분자의 거동을 조사하였다. 이온성 액체는 methyl imidazolium chloride([MIM]Cl), butyl methyl imidazolium chloride([BMIM]Cl), tri-butyl methyl ammonium methyl sulfate([TBMA][ $MeSO_4$])를 사용하였으며, 21, 28, 32, $37^{\circ}C$로 온도를 변화시키며 상호작용의 변화를 UV-vis spectroscopy, FT-IR spectroscopy, photoluminescence spectroscopy를 통해 확인한 결과 이온성 액체인 [MIM]Cl, [TBMA][$MeSO_4$]와 PHVTT의 상호작용은 점차 약해짐을 확인할 수 있었지만, [BMIM]Cl은 온도 변화에 따른 상호작용의 변화를 보이지 않았다.

양자성, 비양자성 이온성 액체와 새롭게 합성된 낮은 밴드갭을 갖는 고분자와의 상호작용에 의한 전기적,광학적 특성 연구 (Electrical and Optical Properties of Newly Synthesised Low Bandgap Polymer with Protic and Aprotic Ionic Liquids)

  • 김중일;김인태
    • 한국응용과학기술학회지
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    • 제30권3호
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    • pp.461-471
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    • 2013
  • Use of low bandgap polymers is the most suitable way to harvest a broader spectrum of solar radiations for solar cells. But, still there is lack of most efficient low bandgap polymer. In order to solve this problem, we have synthesised a new low bandgap polymer and investigated its interaction with the ILs to enhance its conductivity. ILs may undergo almost unlimited structural variations; these structural variations have attracted extensive attention in polymer studies. In addition to this, UV-Vis spectroscopy, confocal Raman spectroscopy and FT-IR spectroscopy results have revealed that all studied ILs (tributylmethylammonium methyl sulfate [$N_{1444}$][$MeSO_4$] from ammonium family) and 1-methylimidazolium chloride ([MIM]Cl, and 1-butyl-3-methylimidazolium chloride [Bmim]Cl from imidazolium family) has potential to interact with polymer. Further, protic ILs shows enhanced conductivity than aprotic ILs with low bandgap polymer. This study provides the combined effect of low bandgap polymer and ILs that may generate many theoretical and experimental opportunities.