| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Systematic Y6 Inner Side-Chain Modulation Enabling Optimized Vertical PhaseSeparation for Non-Halogen Solvent Processed Inverted Organic Solar Cells |
| 초록 |
The curvature shape of Y6 allows for dense intermolecular packing in a grid-like manner. Given this, the modification of branched alkyl chains located on the pyrrole motif of Y6 is expected to have a significant impact on morphological properties (e.g., molecular packing, orientation, and vertical phase separation). In this work, we fine-tune the branched alkyl chain located inner side of the Y6 and systematically investigate the relationship between the morphological features and photovoltaic performance. Additional in-depth analyses reveal that the modification of branched alkyl chains allows the formation of an optimized bulk heterojunction morphology, which is advantageous for an inverted device architecture. In particular, the PM6:Y6-HU-based inverted OSC utilizing o-xylene as a processing solvent achieves PCE of 17.4% and FF of 77.9% under the binary blend system and single non-halogen solvent processing. |
| 저자 |
류승운1, Zaheer Abbas2, 최예림3, 송창은2, 이종철2, 박태호3
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| 소속 |
1POSTECH, 2한국화학(연), 3포항공과대 |
| 키워드 |
alkyl-chain engineering; Y6-series acceptors; vertical phase separation; non-halogen solvent; inverted organic solar cells
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| E-Mail |
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