화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 가을 (10/06 ~ 10/08, 제주 ICC)
권호 39권 2호
발표분야 분자전자 부문위원회
제목 New π-Extended Diketopyrrolopyrrole-based Conjugated Molecules for Thin-Film Transistor and Photovoltaic Applications
초록 Organic semiconductors are an important class of materials for electronic and optoelectronic applications such as organic field-effect transistors (OFETs) and organic photovoltaic cells (OPVs). Recently, solution-processable low-band gap small molecules have attracted considerable attention as OFETs and OPVs for several merits: (1) synthesis and purification are relatively simple; (2) batch-to-batch variation of property is not so significant, yielding consistent electrical properties; and (3) promising molecules with high carrier mobilities and power conversion efficiencies (PCEs) have already been reported. In this work, we demonstrate the synthesis of new low-band gap small molecules containing diketopyrrolopyrrole (DPP). Thermal analaysis, cyclic voltammetry and absorption spectroscopy were employed to investigate their material properties. Eventually, we fabricated field-effect transistor and photovoltaic cell to study their semiconducting property.
저자 이태완, 이대희, 홍태량, 신지철, 조민주, 최동훈
소속 고려대
키워드 OTFT; OPV
E-Mail