화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO))
권호 21권 2호
발표분야 고분자_포스터
제목 Synthesis of Alkyl Chain Spacer in A-D-A n-type dominant Semiconductors
초록 Although the effects of alkyl chain spacers have been intensively studied for p-type conjugated polymers with a donor (D)– acceptor (A) repeating unit, few studies have examined their effects for n-type polymers with an A–D–A architecture having two different acceptors in the repeating unit. Due to the strong electron deficiency and trans-planar conformation, DPPBTz-based polymer semiconductors exhibit n-type dominant electrical properties with high electron mobility up to 1.87 cm2 V-1s-1. Systematic study on the photophysical properties, thin-film microstructures, and electrical properties of the DPPBTz polymers reveals that, upon modification of the branching position, A–D–A n-type dominant semiconductors behave differently compared with D–A p-type dominant semiconductors, due to their relatively weaker intermolecular interactions, making the C1 spacer more efficient for electron transport.
저자 하연희1, 유호정2, 김형남1, 송인호2, 오준학2, 권순기1, 김윤희1
소속 1경상대, 2POSTECH
키워드 n-type polymer; A-D-A;
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