| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
유기전자소자용 소재 및 소자(분자전자소재 부문위원회) |
| 제목 |
Investigating the correlation between Organic Transistor Performance and Semiconductor-Dielectric Interlayer Modifications |
| 초록 |
It has been known that the physical and chemical properties at semiconductor-dielectric interface significantly affect the performance parameters in organic thin-film transistors (OTFTs). However, there has been only few studies reported in a systematic way. In this work, we introduced various surface modifications on the semiconductor-dielectric interface while employing the identical gate dielectric (polyimide) and active channel (pentacene) materials to address the interplay between dielectric surface chemistry and OTFT performance. For surface modification, we deposited a variety of very thin films such as self-assembled monolayers, vapor-deposited films, spin-coated polymers, and/or additional gas treatment on top of dielectrics before evaporating active layer and source/drain electrodes. We observed the strong correlation between the interfacial modifications and OTFT performance parameter such as carrier mobility, threshold voltage, sub-threshold swing, and current on/off ratio. |
| 저자 |
성수진1, 손기철1, 윤명한1, 이미혜2, 가재원2, 장광석2, 김원수2
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| 소속 |
1광주과학기술원, 2한국화학(연) |
| 키워드 |
organic thin-film transistor (OTFT); interlayer modification
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| E-Mail |
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