| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터) |
| 권호 |
36권 1호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Side-chain modified quarterthiophene derivative enhances device performance of organic solar cells |
| 초록 |
A conjugated polymer as a donor material, PDTQT, containing of decylthiophenyl side chains on polymer backbone, was synthesized for use in organic photovoltaic cells. The crystallinity of PQTs was remarkably reduced by substituted-decylthiophenyl side chain of quaterthiophene backbone units. A well-interpenetrated nanoscale morphology of PDTQT:PC71BM blended active layer arose from this modification, which increased the PCE relative to devices based on highly crystalline PQTs. Bulk heterojunction solar cells based on PDTQT:PC71BM blends with a 1:4 weight ratio annealed at 120°C presented the best photovoltaic performances, with a high Jsc of 9.8 mAcm2, an high Voc of 0.91 V, a FF of 0.36 and a high PCE of 3.2 %. The charge transport characteristics and morphology studies indicated that an optimized interpenetration network composed of PDTQT:PC71BM could be achieved in a blend ratio of 1:4 annealed at 120°C. |
| 저자 |
차효정1, 박종원2, 정대성1, 김슬옹2, 김윤희2, 권순기2, 박찬언1
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| 소속 |
1포항공과대, 2경상대 |
| 키워드 |
quarterthiophene; side-chain modifition; organic solar cells; organic semiconductor
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| E-Mail |
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