119th General Meeting of the KCS

Type Poster Presentation
Area 유기화학
Room No. 포스터발표장
Time 4월 20일 (목요일) 11:00~12:30
Code ORGN.P-213
Subject Novel donor-acceptor conjugated polymers based on indenoindene for organic photovoltanics(OPVs)
Authors 윤준태, 서홍석*
부산대학교 화학과, Korea
Abstract The novel conjugated polymers including dihydroindeno[2,1-a]indene moiety (ININE), with greatly planar electron-donating ability, was designed. The donor-acceptor conjugated polymers, P1 and P2 have a electron accepting unit of N-alkyl-2,2′-bithiophene-3,3′-dicarboximide (BTI) and electron donating unit of ININE. These polymers were composed by coupling electron donating and accepting units with Stille polymerization, using Pd(0) catalyst. Two synthesized polymers showed deep energy levels of HOMO between -5.76 and -5.59 eV and proper energy levels of LUMO between -3.65 and -3.55 eV. The PCE of P2 was the higher than the PCE of P1. The device comprising P2 and PC71BM (1:2) with DPE showed a VOC of 0.80 V, a JSC of 1.59 mA/cm2, and a fill factor (FF) of 0.39, giving a power conversion efficiency of 0.49%.
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