| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Morphological Study of Donor/Acceptor Interfaces via Benzene-PC70BM Interaction |
| 초록 |
We designed and synthesized a series of highly soluble random copolymers (P(BDTT-PhC8TPD-TPD). The morphologies and photovoltaic performances of the bulk heterojunction blend films were examined, revealing concentration-dependent competitive benzene–benzene and benzene–fullerene interactions. A bulk heterojunction solar cell prepared using 10 mol% M2 (RP1) and PC70BM exhibited a power conversion efficiency (PCE) of 4.9%, representing a significant improvement over the PCE (1.1%) obtained from parent copolymer (P1). The PCE in these cells was strongly associated with the nanoscale morphology of the BHJ film, which depended on the higher miscibility of RP1 with PC70BM compared to RP2 (M2:20 mol%), and RP3 (M2:30 mol%). |
| 저자 |
박태호, 김관우, 이강영, 루비 라츠, 김홍일
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| 소속 |
POSTECH |
| 키워드 |
Benzene-end-group functionalization; Benzene-PC70BM interaction; Miscibility; Phase-separated morphology; Charge transport
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| E-Mail |
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