| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
OLED 소재 및 소자기술 동향(분자전자 부문위원회) |
| 제목 |
Organic Transistors from Soluble Acene-Polymer Blend Semiconductors |
| 초록 |
We report on the structural development and phase separation behavior of spin-cast difluorinated triethylsilylethynylanthradithiophene (F-TESADT) and poly(methyl methacrylate) (PMMA) blends and their application in field-effect transistors (FETs). Although F-TESADT is highly crystalline small-molecular semiconductor with excellent electrical properties, its use in FETs is limited by the dewetting of film especially when solvent with high boiling point is used. For this reason, PMMAinsulating polymer with good film-forming characteristicsis blended with F-TESADT for enhancing processing window. Because F-TESADT is preferentially segregated at the air-film interface during spin-casting, conducting channel is maintained. Morphological and structural characterizations confirm that highly crystalline F-TESADT crystals are formed on PMMA. The use of these phase-separated blend films as active layer leads to high mobility FETs with good environmental and electrical stability. |
| 저자 |
이위형1, 곽동훈2, John E. Anthony1, 조길원2
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| 소속 |
1포항공과대, 2화학공학과 |
| 키워드 |
Organic Thin-Film Transistor; Soluble acene; Blend
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| E-Mail |
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