화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO))
권호 40권 2호
발표분야 분자전자 부문위원회 II
제목 Effect of planar or electron-withdrawing unit in conjugated polymer for ambipolar organic thin-film transistors
초록 Organic thin film transistors (OTFTs) based on conjugated polymers are gaining attention due to their potential in solution processability and flexibility on the plastic substrate. For high-performance materials in OTFTs, conjugated polymers usually have planar backbone structures and alternation of electron donor (D) /acceptor (A) unit which are beneficial to achieve extended π–electron system and strong intermolecular interactions. D-A combination allows to adjust energy levels to realize the ambipolar OTFT properties. Due to its coplanar fused rings and imine groups, thiazolothiazole (TTz) unit shows strong π-π stacking and electron accepting tendency. Thienylenevinylene (TV) also has good planarity and an extended π-conjugation system because of the presence of a vinylene spacer. In this study, we present synthesis of TTz-TV copolymer and other two comparable materials to check the variation of the planarity and the tendency of ambipolar charge transport behavior.
저자 김동유, 강민지, 장수영, 임대희
소속 광주과학기술원
키워드 Organic thin-film transistor; synthesis; planarity; ambipolar; thiazolothiazole; thienothiophene
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