화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO))
권호 25권 2호
발표분야 포스터-디스플레이
제목 Completely foldable electronics based on homojunction polymer transistors and logics
초록 An increase in the demand for completely foldable electronics has motivated efforts for the development of conducting polymer electrodes having extraordinary mechanical stability. However, weak physical adhesion at intrinsic heterojunctions has been a challenge in foldable electronics. This paper reports the completely foldable PTFTs and logic gate arrays. Homojunction-based PTFTs were fabricated by selectively doping p-type DPP-based semiconducting polymer films with FeCl3 to form source/drain electrodes. The doping process caused a gradual work function change with depth, which promoted charge injection to semiconducting regions and provided a low contact resistance. In addition, the interfacial adhesion in the PTFTs was improved by interfacial cross-linking between adjacent component layers. The electrical performance of the resulting PTFTs was maintained without noticeable degradation even after extreme folding.
저자 김선권1, 김민제1, 유화숙2, 우한영2, 조정호1
소속 1연세대, 2고려대
키워드 PTFT; Foldable electronics; crosslinking
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