화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 37권 2호
발표분야 대학원생 구두발표
제목 Benzotriazole-Based Donor-Acceptor Type Semiconducting Polymers for Photovoltaic Devices
초록 A series of low band gap polymers composed of benzotriazole and benzo[1,2-b:4,5-b']dithiophene (BDT) derivatives were synthesized using a Stille cross-coupling ewaction for use in organic photovoltaic devices. Linear or branched alkyl groups were incoporated into the benzotriazole-based accepting monomer part, and alkoxy or alkylthiophene groups were introduced to BDT-based donating monomer part. Changes in photo-pysical properties of the polymers by the structural modification of the donor-acceptor type low band gap polymers were inverstigated. The optical band gap energies of the polymers were measured to be 2.03-1.90 eV depending on the polymer structure. Solution-processed field-effect transistors were fabricated and characterized using the polymers as p-type channel materials. Bulk hetero-junction photovoltaic devices were fabricated using the polymers with PC71BM as the electron acceptor.
저자 김지훈1, 김희운1, 송창은2, 신원석3, 강인남4, 이진균5, 황도훈1
소속 1부산대, 2카이스트, 3한국화학(연), 4카톨릭대, 5인하대
키워드 Organic photovoltaic device; benzo[1; 2-b:4; 5-b’]dithiophene; benzotriazole; low band gap polymer
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