| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
유기전자소자용 소재 및 소자(분자전자소재 부문위원회) |
| 제목 |
Studyof Hydroxyalkyl Oligothiophene on the Growth of the Uniform Charge Transport Layer for Organic Thin Film Transistors |
| 초록 |
It is well known that the first two molecular layers next to the dielectric interface contribute to the charge transport in organic thin film transistors (OTFTs). For uniform and ultrathin charge transport layer, we synthesized Bis(hydroxypropyl)-sexithiophene (bHP6T) containing hydroxyalkyl groups. During film deposition, intermolecular interactions such as hydrogen bonding and π-π interactions between bHP6T molecules induced uniform layer-by-layer growth at the interface. The electrical properties of OTFT using bHP6T as a active material show high mobility (over 10-2 cm2/Vs) and on/off ratio(about 104). The morphology of the semiconducting layer of the bHP6T was investigated using atomic force microscopy (AFM) and X-ray diffraction (XRD) method. This work was supported by the Program for Integrated Molecular Systems (PIMS) at GIST and the Basic Science Research Program (2010-0000282). Korean Science and Engineering Foundation (R01-2008-000-12246-0) |
| 저자 |
정상미, 정은영, 박지웅
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| 소속 |
광주과학기술원 |
| 키워드 |
OTFT; sexithiophene; interface
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| E-Mail |
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