| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Controlling the charge injection of ambipolar organic field-effect transistors using Cs-salt and application to complementary circuits |
| 초록 |
We have studied charge injection and transport properties of nano-scale CsF interlayer onto Au electrodes in TG/BC OFETs based on ambipolar polymer semiconductors by various physical and chemical analysis such as AFM image, XPS and UPS study. The different size and distribution of CsF nano-dots were formed by thermal evaporation method, thereby systematically compared the interlayer topology with transistor characteristics. Initially, PTVPhI-C12 OFETs showed p-channel predominant characteristics with relatively high μh of ~0.072 cm2/Vs and low μe of ~9.7×10-3 cm2/Vs. It is very interesting that very tiny amount of CsF deposition caused to significant enhancement of μe increased up to ~0.12 cm2/Vs, whilst μh decreased to ~0.017 cm2/Vs. Next, from selective deposition of CsF using metal shadow mask, we successfully fabricated CMOS inverters (high voltage gain of more than 23) based on the ambipolar PTVPhI-C12. |
| 저자 |
김동윤1, 백강준2, 김주환1, 여준석1, 강민지1, 노용영3, 김동유1
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| 소속 |
1광주과학기술원, 2North Western Univ., 3한밭대 |
| 키워드 |
organic field-effect transistors; ambipolarity; organic circuits
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| E-Mail |
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