| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Utilizing 3,4-Ethylenedioxythiophene (EDOT)-Bridged Non-Fullerene Acceptors for Efficient Organic Solar Cells |
| 초록 |
The short current density (Jsc) and open circuit voltage (Voc) results in a trade-off relationship, making it difficult to obtain efficient OSCs. Herein, three non-fullerene acceptors (NFAs; IFL-ED-4F, IDT-ED-4F, and IDTT-ED-2F) were synthesized to address the above-mentioned issue by introducing 3,4-ethylenedioxythiophene (EDOT) as a π-bridge in the A-D-A structure. These NFAs exhibit relatively low bandgaps and upshifted lowest unoccupied molecular orbital (LUMO) levels compared with most reported low-band-gap NFAs. Surprisingly, when each NFA was introduced as the third component of the high-performance PM6:BTP-BO-4Cl combination, complementary absorption and fine energy level alignment between the two substances could be achieved. Especially, the IDTT-ED-4F-based ternary blend device is achieved the best power conversion efficiency (PCE) of 15.2%, which is approximately 5.3% higher than that of the devices with a minimized energy loss of 0.488 eV. |
| 저자 |
전성재, 문두경, 김영훈, 김이나, 양남규, 윤지희
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| 소속 |
건국대 |
| 키워드 |
Non-fullerene Acceptor; 3; 4-ethylenedioxythiophene; Organic Solar Cell; π-bridge; π-spacer.
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| E-Mail |
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