| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Simultaneous Improvement of Hole and Electron Injection in Organic Field-effect Transistors by Conjugated Polymer-wrapped Carbon Nanotube Interlayers |
| 초록 |
We investigated conjugated polymer-wrapped semiconducting single-walled carbon nanotubes (s-SWNTs) as solution-processable charge-injection layers in organic field-effect transistors. In the contact-limited ambipolar OFETs, the interlayer led to significantly lower contact resistance and increased mobilities for both holes and electrons. The resulting PTVPhI-Eh OFETs with polymer-wrapped s-SWNT interlayers showed very well-balanced ambipolar transport properties with a hole mobility of 0.3 cm2V-1S-1 and an electron mobility of 0.22 cm2V-1S-1. We found that the improvements caused by the interlayer were due to the better charge injection at the metal/organic semiconductor contact interface and the increase in the charge concentration through a detailed examination of charge transport with low-temperature measurements. Finally, we successfully demonstrated complementary ambipolar inverters incorporating the interlayer without excessive patterning. |
| 저자 |
이승훈1, 김동윤2, Yong Xu2, 김주환1, 박원태2, 노용영2, 김동유1
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| 소속 |
1광주과학기술원, 2동국대 |
| 키워드 |
Oganic field-effect transistor; conjugated polymer; carbon nanotubes; interlayer; polymer-carbon nanotube composite; charge injection
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| E-Mail |
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