화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 분자전자 부문위원회 Ⅰ,Ⅱ
제목 Enhancing Doping Efficiency of Diketopyrrolopyrrole-copolymer: A Synthetic Approach
초록 Typical diketopyrrolopyrrole-based copolymers are not suitable for molecular doping, which relies on intermolecular charge transfer. This is probably due to the relatively high ionization potential or the weak intermolecular charge transfer properties between the dopant and acceptor of the copolymer. Here, we introduce a novel DPP-copolymer with strategically designed sparse intramolecular alkyl chain spacing in which dopant molecules can be present. This novel DPP-copolymer exhibits a high doping efficiency compared to conventional DPP copolymers, which exhibit typical characteristics of integer charge transfer. In addition, doping-induced solubility control, which was not possible with other DPP-copolymers due to the low doping efficiency, is possible, enabling high-mobility organic field-effect transistors and complementary all-polymer inverter arrays.
저자 남건희1, Cheng Sun2, 정대성1, 김윤희2
소속 1포항공과대, 2경상대
키워드 Organic semiconductor; Donor-acceptor copolymer; Molecular doping
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