| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Sonified Interaction Effects on Direct Self-Assembly of π-Conjugated Polymers in Solutions |
| 초록 |
Self-assembly of π-conjugated polymers has been extensively studied to achieve organic devices. In general, an ultrasonication is useful to disperse polymeric solutes in solvents. However, organic semiconducting molecules with strong π-π interactions tend to be agglomerated together in a marginal solvent. Here, 1D semiconducting nanowires were fabricated using direct self-assembly of conjugated polymers in a marginal solvent. Controlling ultrasonication parameters such as power and time, 1D crystalline forms of P3HT in dilute solutions could be controlled from amorphous-like to nanofibrils. P3HT films were spun-cast on gate dielectrics from the sonified solutions. Electrical properties of the cast P3HT films were characterized and correlated with the corresponding crystal structures. It was found that the simple ultrasonication for the dilute P3HT solutions was drastically improved the intermolecular π-overlap of P3HT, producing high-performance OFETs without any further treatment. |
| 저자 |
이민정1, 장미1, 전현열2, 백경열2, 양회창1
|
| 소속 |
1인하대, 2한국과학기술(연) |
| 키워드 |
conjugated polymer; self-assembly; ultrasonication
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| E-Mail |
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