| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Effect of structural modulation of polymeric 3rd component on the performance of polymer solar cells |
| 초록 |
The properties of co-absorbing wide band-gap polymers re fine-tuned via the insertion of two different appropriate electron-acceptor units on their backbone in different ratios, and the resulting polymers are utilized as a co-absorbent on ter-PSCs. The copolymerization of benzodithiophene, pyrrolopyrrole-1,3-dione, and difluoro-benzothiadiazole derivatives at three different ratios, 1.00:1.00:0.00, 1.00:0.50:0.50, and 1.00:0.25:0.75, produces the polymers P1–P3. The crystallinity of the polymers is increased in the order of P1 ＜ P2 ＜ P3. The inclusion of 20 wt% of each of P1, P2, and P3 on a P4 (=PTB7-Th):PC70BM blend offers PCEs of 9.31%, 9.60%, and 9.85%, respectively, which are higher than that of the bi-PSC made using a blend of P4:PC70BM (PCE = 8.20%). The improved absorption, crystallinity, and carrier mobilities of the ternary blends are the main reasons for their enhanced photovoltaic performance compared with the binary blends. |
| 저자 |
신인수1, Vellaiappillai Tamilavan2, 김단비3, 양현석4, 정윤경1, 정중현2, 이보람3, 김주현4, 손세모1, 박성흠2
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| 소속 |
1Department of Physics, 2Pukyong National Univ., 3Busan 608-737, 4Republic of Korea |
| 키워드 |
polymer; ternary; solar cell
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| E-Mail |
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