| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Improvement of light harvesting property of polymer solar cells by fabricating ternary cascade energy structures using PC61BM |
| 초록 |
The development of small-molecule-based polymer acceptors is a promising strategy to take advantage of the efficient light absorption of small molecules and the superior flexibility of polymers. In this work, a new polymer acceptor, namely PTPB-TT, has been designed by the polymerization of the state-of-the-art Y6 small molecule acceptor. By combining the complimentary properties of PC61BM and the polymers, broad absorption, cascaded energy level alignment, suppression of monomolecular recombination, effective exciton dissociation and balanced mobility could be achieved. As a result, by incorporating 5 wt.% of PC61BM into the PBDB-T:PTPB-TT all-polymer blend, the short-circuit current density (Jsc) and fill factor (FF) of the PSCs could be enhanced, leading to an improvement of the PCE from 7.24% to 8.03%. This study suggests that PC61BM can be utilized as an additive photosensitizer to further boost the performance of all-PSCs. |
| 저자 |
Hong Diem Chau, Meenal Kataria, 권나연, 박수홍, 제현두, 정성훈, 강민지, 조민주, 최동훈
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| 소속 |
고려대 |
| 키워드 |
organic solar cell; ternary blend; polymer acceptor
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| E-Mail |
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