| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
Fluorinated Benzoselenadiazole-based Low-Band–Gap Polymers for High Efficiency Inverted Single and Tandem Organic Photovoltaic Cells |
| 초록 |
We designed and synthesized two low-band–gap conjugated copolymers with alternating difluorinated benzoselenadiazole (DFDTBSe) and ethylhexyloxy (EH)- or octyldodecyloxy (OD)-substituted benzo[1,2-b:4,5-b’]dithiophene (BDT) building blocks. The different alkyloxy side chains in the polymers affect the molecular packing and ordering in active-layer films blended with [6,6]-phenyl-C71 butyric acid methyl ester (PC71BM). Bulk heterojunction solar cells were fabricated with an inverted structure of ITO/ethoxylated polyethylenimine/polymer:PC71BM/MoO3/Ag. The device fabricated using the PEHBDT-DFDTBSe:PC71BM active layer shows a maximum power conversion efficiency (PCE) of up to 5.74%, which is the highest value reported for OPVs containing benzoselenadiazole and BDT-derivative polymers. |
| 저자 |
김지훈1, 박종백1, 양회창2, Yongfang Li3, 황도훈1
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| 소속 |
1부산대, 2인하대, 3Chinese Academy of Sciences |
| 키워드 |
Benzoselenadiazole; organic photovoltaic cells; tandem solar cells; low-band–gap polymer
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| E-Mail |
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