화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 분자전자 부문위원회 II
제목 Capacitively Coupled Hybrid Ion Gel and Carbon Nanotube Thin-Film Transistors for Low Voltage Flexible Logic Circuits
초록 The lamination of a high-capacitance ion gel dielectric layer onto semiconducting carbon nanotube (CNT) thin-film transistors (TFTs) that are bottom-gated with a low-capacitance polymer dielectric layer drastically reduces the operating voltage of the devices resulting from the capacitive coupling effect between the two dielectric layers sandwiching the CNT channel. As the CNT channel has a network structure, only a compact area of ion gel is required to make the capacitive coupling effect viable. The capacitively coupled CNT TFTs possess superlative electrical characteristics such as high carrier mobilities, steep subthreshold swings, and low gate leakage currents (<1 nA). These devices can be further integrated to form complex logic circuits on flexible substrates with high mechanical resilience. The layered geometry of the device coupled with scalable solution-based fabrication has significant potential for large-scale flexible electronics.
저자 최용석1, 강주훈2, Ethan B. Secor2, Jia Sun3, 김형준4, 임정아4, 강문성5, Mark C Hersam2, 조정호1
소속 1연세대, 2Northwestern Univ., 3성균관대, 4KIST, 5서강대
키워드 carbon nanotubes; polymer dielectric; ion gel; printing; flexible; logic gate
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