화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 디스플레이_포스터
제목 Fluorinated Polyimide Gate Dielectrics for Transparent Organic Field-Effect Transistor and Logic Gate Circuit with Electrical Stability
초록 Fluorinated polyimides gate dielectric based on 6FDA-TFDB-PI and 6FDA-BisAAF-PI were synthesized to use as a gate dielectric to fabricate high performance organic field-effect transistors. The fluorine substituted into polyimide chain was improved the efficiency of solution-process to make uniform films. These fluorinated polyimide make it possible to fabricate transparent devices. Especially, OFETs based on 6FDA-TFDB-PI which has low surface energy have high-performance because defect density formed by grain boundary is lowest. The OFETs based on 6FDA-TFDB-PI gate dielectric have high carrier mobility and a high on/off ratio exceeding 106. And, we show that the devices have excellent electrical stability from measured bias stress test.
저자 민홍기, 강보석, 조정호
소속 연세대
키워드 organic field-effect transistor (OFET); Fluorinated polyimide; pentacene; PTCDI-C8; polymer dielectric
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