화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 분자전자 부문위원회 Ⅰ,Ⅱ
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 김민제1, 유화숙2, 최윤영1, 호동해1, 이윤주2, Ayushi Tripathi2, 손재훈2, 김승한3, 강문성3, 우한영2, 조정호1
소속 1연세대, 2고려대, 3서강대
키워드 Foldable Electronics; Polymer thin-film transistors; Doping; Photopattern
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