화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 대학원생 구두발표 (발표15분)
제목 Strategic Design and Synthesis of Conjugated Polymer for Facile Charge Carrier Generation and High Doping Efficiency
초록 Molecular doping is an effective strategy for enhancing the electrical conductivity of organic conductors. When conjugated polymers (CPs) with electron-donating isoindoloindole derivatives are subjected to molecular doping with F4-TCNQ, It was determined the electron withdrawing ability of the repeating unit sensitively influenced the sequential doping efficiency. The degree of charge transfer between F4-TCNQ and the isoindoloindole units in CPs crucially affected the doping efficiency, and even the doping mechanism. The doped CPs were characterized using AC Hall effect devices, and the doping mechanism was explained by FT-IR, Raman, and ESR spectroscopies. PIDF-BT among CPs exhibits an outstanding electrical conductivity, mostly due to both strong intercalation of F4-TCNQ and relatively fast carrier mobility in the doped state. It is suggested that the isoindoloindole unit used herein has a better potential than the thiophene unit for organic conductors in molecular doping system.
저자 박재홍1, 윤상은2, 황동렬3, 이대운4, 계효진2, 한지민1, 황수지1, 김종현1, 김봉기2
소속 1건국대, 2아주대, 3Linz Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, 4Johannes Kepler Univ. Linz
키워드 Organic conductor; Conjugated polymer; Molecular doping; F4-TCNQ; Charge carrier generation; Isoindoloindole
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