| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Syntheses and Photovoltaic Properties of Bis-adduct of Fullerene derivatives for Organic Photovoltaic Cells |
| 초록 |
Bis-adduct type fullerene acceptors were developed to improve the PCE of OPVs by modification of the LUMO level of acceptor. We also reported novel bis-adduct type fullerenes having o-xylenyl substituent, which showed 5.3% of PCE with 0.83 V of Voc. However, these bis-adduct type acceptors showed extremely low photo-current in the mixture of low bandgap polymers due to low band offset and miscibility problem. In order to solve this problem, in this study, we designed and synthesized novel C60 bis-adducts having different substituents from Diels-Alder reaction of fullerene mono-adduct with various dienophiles, which showed slightly lower LUMO level and better solubility than those of conventional bis-adduct. The electrochemical and photophysical properties of our acceptors were investigated by cyclovoltammetry and UV/Vis absorption spectroscopy, respectively. As a result, about 5% of PCE can be obtained under illumination of 100 mW/cm2 AM1.5 simulated light. |
| 저자 |
남소연1, 박민아1, 김판석1, 박상만1, 김범준2, 이재민1, 이창진1, 윤성철1
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| 소속 |
1한국화학(연), 2KAIST |
| 키워드 |
solar cell; OPVC; Acceptor Materials
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| E-Mail |
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