| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
유기전자소자용 소재 및 소자(분자전자소재 부문위원회) |
| 제목 |
Controlling Number of Indene Solubilizing Groups in Multiadduct Fullerenes for Tuning Opto-Electronic Properties and Open-Circuit Voltage in Polymer Solar Cells |
| 초록 |
The ability to tune the lowest unoccupied molecular orbital (LUMO)/ highest occupied molecular orbital (HOMO) levels of fullerene derivatives used as electron acceptors is crucial in controlling the optical/ electrochemical properties of these materials and the open circuit voltage (Voc) of solar cells. Here, we report a series of indene fullerene multiadducts (ICMA, ICBA, and ICTA) in which different numbers of side chains are attached to the fullerene molecule. The addition of indene units to fullerene raised its LUMO/HOMO level, resulting in higher Voc values in the photovoltaic device. Bulk-heterojunction (BHJ) solar cells fabricated from a series of indene fullerene multiadducts consisting of P3HT:ICMA, P3HT:ICBA, and P3HT:ICTA showed Voc values of 0.66, 0.84, and 0.92 V, respectively. |
| 저자 |
강현범1, 조철희1, 강태의1, 김형준1, 김기현1, 조한희1, 윤성철2, 김범준1
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| 소속 |
1KAIST, 2한국화학(연) |
| 키워드 |
Electron acceptor; Fullerene; Indene; organic solar cell
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| E-Mail |
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