| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Bulk heterojunction morphology control via binary processing additives in polymer solar cells |
| 초록 |
In polymer solar cells (PSCs), morphology control of photo-active layer based on bulk heterojunction (BHJ) is crucial factor to decide device performance. To control morphology of active layer, introduction of solvent additives is very effective and one of the simplest method. We report the effect of binary additives on polymer solar cells (PSCs) based on bulk heterojunction (BHJ) system. The combination of high-boiling and selective solvent of 1,8-diiodooctane (DIO) for fullerene derivatives and the nonvolatile insulator additive affords complementary functions on effective modulation of BHJ morphology. DIO suppressed large separation of PBDTTT-CF and PCBM and insulating additive induced the continuous path way of PBDTTT-CF by phase separation. As a result, the power conversion efficiency (PCE) can be further enhanced to 7.6% with improving fill factor (FF) from 6.8% of conventional device employing only DIO additive system. |
| 저자 |
정은숙1, 여준석2, 김남구1, 이세현1, 황경일1, 전예진1, 허윤정1, 김동유1
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| 소속 |
1광주과학기술원, 2한국과학기술(연) |
| 키워드 |
Binary additives; morphology; polymer solar cells
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| E-Mail |
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