화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2015년 봄 (04/29 ~ 05/01, BEXCO (부산))
권호 19권 1호
발표분야 고분자_포스터
제목 A high-performance solution-processed small molecule: alkylselenophene-substituted benzodithiophene organic solar cell
초록 A solution-processed alkylselenophene-substituted benzodithiophene (BDT) small molecule, namely, BDTSe-TTPD, with broad absorption and suitable energy levels was synthesized. The widely used solvents o-dichlorobenzene (o-DCB), chlorobenzene (CB) or chloroform (CF) were used as the spin-coating solvent, to fabricate efficient photovoltaic devices with BDTSe-TTPD as the donor material and PC71BM as the acceptor. Devices made from a CF solution demonstrated better performance in terms of short-circuit current, fill factor and power conversion efficiency, as compared to the devices made from the o-DCB and CB solutions. Finally, by optimizing the thickness of the active layer, a power conversion efficiency of 4.37% was achieved on devices with an area of 0.09 cm2, under 100 mW cm_2 of simulated AM 1.5 irradiation.
저자 백장열1, 조철성1, 김명종1, Xianqing Liu1, 박광훈1, 김유진2, 박찬언2, 김윤희1
소속 1경상대, 2포항공과대
키워드 solution-processed small molecule; organic solar cell; BDT
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