화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU))
권호 26권 1호
발표분야 포스터-고분자
제목 Synergy Effect of Interfacial Change Transfer by Coupling between Localized States in Organic Transistors
초록 Understanding charge transfer across the interface between organic semiconductor and gate insulator gives insight into the development of high-performance organic memory as well as highly stable organic field-effect transistors (OFETs). In this work, we firstly unveil a novel interfacial charge transfer mechanism, in which hole transfer from organic semiconductor to polymer insulator was non-linearly boosted by localized states coupling. For this, OFETs based on rubrene single crystal semiconductor and Mylar gate insulator were fabricated via vacuum lamination, which allows stable repetition of lamination and delamination between semiconductor and gate insulator. Consequently, we found that the interfacial charge transfer and resultant bias-stress effect were non-linearly boosted by coupling between localized states in rubrene and Mylar. In particular, the small number of localized states in rubrene single crystal provided fluent pathway for interfacial charge transport.​
저자 한송연, 김수진, 임재민, 정유정, 송원성, 김영진, 최현호
소속 경상국립대
키워드 Organic transistors; Charge transfer; Bias-stress; Interface
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