| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Interfacial Engineering of a Highly Efficient Polymer Solar Cell Based on a Novel Polymeric Interlayer |
| 초록 |
In bulk-hetero junction (BHJ) polymer solar cells (PSCs), the interfacial energy barrier between the metal oxide and organic active layer is known to act as electron traps and recombination centers, resulting in recombination losses and energy level mismatch. Modification of the surface properties of ZnO could be crucial for improvement of the device performance, especially in inverted PSCs that employ metal oxide films for the electron transporting layer (ETL). Herein, we employed PBN as an electron-transporting layer on a ZnO layer and constructed a highly efficient, inverted structure device consisting of PTB7:PC70BM achieving a high power conversion of up to 8.6%, constituting a 21.1% improvement over the control device performance (7.1%) prepared without a PBN layer. This result was ascribed to the reduced interfacial resistance and the improved charge transport and collection through the PBN ETL. |
| 저자 |
김홍일1, Bui Thi Thu Trang2, 김관우1, 강경호1, 신원석2, 박태호1
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| 소속 |
1POSTECH, 2한국화학(연) |
| 키워드 |
Polymer Solar Cell; Polymeric Interlayer; Interfacial Engineering
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| E-Mail |
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