| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Role of additional PCBM layer between ZnO buffer and photoactive layers in inverted bulk heterojunction solar cells |
| 초록 |
High performance inverted organic bulk heterojunction solar cells were demonstrated using a novel polymer donor, polythienothiophene-co-benzodithiophenes (PTB7-F20), and PC71BM as an acceptor. An additional PC61BM layer was inserted between the solution-prepared nanostructured ZnO buffer layer and the photoactive layer to enhance the electron extraction efficiency. The insertion of an additional PC61BM layer provided substantial advantages in the operation of inverted BHJ solar cells; specifically, it enhanced current homogeneity and lowered accumulation and trapping of photogenerated charges at the ZnO interface. This resulted in a 16% increase in the power conversion efficiency of inverted BHJ solar cells to 7.7%, compared to solar cells without the additional PC61BM layer. |
| 저자 |
조신욱1, 김광대2, 허진희3, 이주열3, 차기훈3, 서보열3, 김영독2, 김용수1, 임동찬3
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| 소속 |
1울산대, 2성균관대, 3재료(연) |
| 키워드 |
solar cell; bulk heterojunction; inverted; ZnO
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| E-Mail |
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