| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Effects of Solubilizing Group Modification in Fullerene Bis-adducts on Normal and Inverted Type Polymer Solar Cells |
| 초록 |
We synthesized a series of o–xylenyl C60 bis–adduct (OXCBA) derivatives with different solubilizing side groups to systematically investigate the effects of fullerene derivative structures on the photovoltaic properties of PSCs. The xylenyl side groups on the OXCBA were modified to produce several different OXCBA derivatives in which the xylenyl groups were functionalized with fluorine (FCBA), nitro (NXCBA), methoxy and bromine (BMXCBA), and phenyl groups (ACBA). End group modifications of OXCBA dramatically affect photovoltaic performance in blend films with poly(3–hexylthiophene) (P3HT), resulting in power conversion efficiencies (PCEs) ranging from 1.7 to 5.3%. We found that this large range in PCE values is mainly due to differences in the blend morphology and interfacial area of the P3HT:OXCBA derivative films caused by changes in the hydrophobicity of the OXCBA derivatives and their interfacial interaction with P3HT. |
| 저자 |
김기현1, 강현범1, 김형준1, 김판석2, 윤성철2, 김범준1
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| 소속 |
1KAIST, 2한국화학(연) |
| 키워드 |
electron acceptors; solubilizing groups; fullerene bis–adducts; interfacial tensions; polymer solar cells
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| E-Mail |
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