화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO))
권호 25권 2호
발표분야 포스터-고분자
제목 Rational Molecular Design of Electrochromic Conjugated Polymers: Toward High-Efficiency Systems with Ultrahigh Stability
초록 The  conjugated polymers (CPs) contained fused arylamine have advantages to realize electrochemically stable redox reaction and to visualize various color depending on substituents. Here, we designed fused arylamine based three CPs containing indolocarbazole or indoloindole, which exhibited different oxidation/reduction activities. It has been demonstrated that the performance of electrochromic device (ECD) was principally affected by the kinetics of the redox center of each CP as well as film crystallinity determining ion diffusion efficiency. A CP containing an indoloindole derivative exhibited outstanding redox cycle stability (> 6,000 cycles) as well as coloration efficiency (> 1,000 cm2/C) for electrochromic application. Furthermore, the change of chain conformation during bleaching/coloration was correlated with the operation stability of each ECD.
저자 인예령1, 한지민2, 권지언3, 김봉기2, 문홍철1
소속 1서울시립대, 2건국대, 3전북한국과학기술(연)
키워드 Conjugated polymers; Electrochromic devices
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