화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO))
권호 45권 1호
발표분야 분자전자 부문위원회 I
제목 Flexible and semi-transparent organic electrochemical transistors based on ultra-thin Au-PEDOT:PSS hybrid electrode for human skin electronics
초록 Organic electrochemical transistors (OECTs) are one of the most promising device platforms for the field of bioelectronics. In comparison to other organic-based electronics, OECTs have several advantages including high transconductance, low voltage operation, and long-term stability. Here, we suggest an ultra-thin hybrid electrode was fabricated by thermally depositing ultra-thin sub-nano thickness Au electrode on crystalline poly(3,4 ethylene dioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) thin film, which has a transmittance of 56% at visible range wavelength and low sheet resistance of 39.13 Ω/sq. Based on this structure, a semi-transparent and flexible top-contact structure OECT was fabricated that shows a transconductance of 2.5ms, and the performance was maintained even in the bending state(r=9mm). Finally, this semi-transparent OECT is attached to human skin to successfully perform electromyography (EMG) measurements.
저자 조일영, 김건우, 김영석, 윤명한
소속 광주과학기술원
키워드 organic electronics; organic electrochemical transistor; thin-film transistor; bio-electronics; transparent electrode
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