화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 대학원생 구두발표(토론I): 분자전자용 공액고분자 소재 및 소자의 미래
제목 Rational Molecular Design of Electrochromic Conjugated Polymers toward High-Performance and Redox 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 (>6000 cycles) as well as coloration efficiency (>1000 cm2/C) for electrochromic application. Furthermore, the change of chain conformation during bleaching/coloration was correlated with the operation stability of each ECD.
저자 한지민1, 인예령2, 김봉기1, 문홍철2, 권지언3
소속 1건국대, 2서울시립대, 3전북한국과학기술(연)
키워드 conjugated polymers; electrochromic device
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