| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자 액정소재 기반 디스플레이 |
| 제목 |
Fabrication of crystalline films by microcontact printing technique with liquid crystalline organic semiconductors and FET applications |
| 초록 |
Here, we have demonstrated highly ordered organic semiconductor micropatterns of the liquid crystalline small molecule, C10-BTBT, by using a simple method based on template-assisted self-assembly (TASA). The self-alignment properties of the smectic liquid crystal phase of C10-BTBT enable the solvent-free processing of well-defined micropatterns for printed OFETs. The orientation of the liquid crystalline OSC material was directed by using a topographically pre-patterned polymeric template. The nucleation and directional growth of C10-BTBT via TASA was investigated with X-ray diffraction as well as optical and electron microscopy. We then fabricated high-performance organic transistors with a mobility of ~1.7 cm2/V•s based on the highly ordered small molecule micropatterns. We used a polyimide organic dielectric layer in the FETs instead of typical SiO2 gate insulators to realize all-organic FET devices.. |
| 저자 |
김윤호, 김아련, 가재원, 장광석, 김진수, 원종찬, 이미혜
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| 소속 |
한국화학(연) |
| 키워드 |
smectic; liquid crystal; otft
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| E-Mail |
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