| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
분자전자 소재 및 소자(분자전자 부문위원회) |
| 제목 |
Enhancement of Device Performance and Thermo-stability of Organic Solar Cells by Controlling Crystallinity of Donor Polymers |
| 초록 |
The new π-conjugated polymer, poly(2,5-dioctyloxyphenylene vinylene-alt-3,3-dioctylquarter thiophene) (PPVQT-C8), consisted of alternating p-divinylene phenylene and 3,3-dialkylquarter thiophene units was prepared for organic solar cell devices. The crystallinity of poly(quarterthiophenes)(PQTs) was reduced by introducing p-divinylene phenylene units between two quarterthiophene units. As a result, the well-mixed nanoscale morphology and thermo-stability of PPVQT-C8:PCBM photoactive layers could be maintained, which result in increased power conversion efficiency when compared to devices based on the highly crystalline PQTs. Bulk heterojunction solar cells based on PPVQT-C8:PC60BM blend with 1:3 ratio present the best photovoltaic performances with Jsc of 6.7mA/cm2, Voc of 0.67V, FF of 0.62 and PCE of 2.8% under illumination of AM 1.5 with light intensity of 100 mW/cm2. |
| 저자 |
박종환1, 박정일2, 김도환2, 김주현1, 김종수1, 심치영1, 심명선1, 이상윤2, 조길원1
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| 소속 |
1포항공대, 2삼성종합기술원 |
| 키워드 |
Organic Solar Cells; Thermo-stability; Crystallinity; Donor Polymer
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| E-Mail |
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