화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO))
권호 25권 1호
발표분야 포스터-전기화학
제목 Ionically Connected Floating Electrodes for Long-Distance (> 1 mm) Coplanar-Gating Graphene Transistors
초록 Exploiting the long-range polarizability of an electrolyte, electric double-layer transistors (EDLTs) can be constructed in an unconventional configuration. For example, the current density of a transistor channel can be modulated using a gate electrode that is not located directly on top/below the channel but placed apart from the channel as long as the electrode is bridged with the channel through the electrolyte. In this paper, we demonstrate the influence of the distance factors of the electrolyte layer on the operation of EDLTs with a coplanar gate. As the promptness of the EDL formation depends on the distance between the channel/gate, the dynamic characteristics of transistor degrade with long distance. To suppress this degradation, we suggest using multiple short ionic bridges. Unlike EDLTs that utilizes a single extended electrolyte layer, the devices with multiple segmented electrolyte layers operate effectively even when they are gated from a distance longer than 1 mm.
저자 조현우, 강태욱
소속 서강대
키워드 graphene transistor; ion gel electrolyte; coplanar gating; floating electrodes
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