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  • 09월 06일 15시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Nonvolatile Molecular Memory of an Azobenzene Monolayer through Solution-processed Reduced Graphene Oxide Contacts

2013년 9월 5일 16시 51분 53초
MAT.P-1117 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 16일 (수요일) 16:00~19:00
저자 및
민미숙, 이효영1,*
성균관대학교 화학과, Korea
1성균관대학교 화학과, CSMM, Korea
Solution-processed fabrication of molecular devices without the use of lithographic techniques is currently a major goal in plastics-based molecular electronics. Reduced graphene oxide (rGO), a single-layer sp2-carbon atomic sheet that is electronically compatible with graphene, has attracted attention because of its excellent solution dispersion and its semimetal property of high conductivity, which allows for good electronic contacts with organic molecules. In particular, like noble metals, graphene can act as a building block for molecular assembly using bottom-up fabrication and can provide chemically compatible contacts via the formation of carbon-carbon bonds and stable contacts that avoid contact fluctuations at the interface with organic molecules. In this study, an rGO solution process for the fabrication of a flexible molecular monolayer electronic device was designed that allows for the generation of a physical soft top contact to AB molecules covalently attached to an rGO bottom contact. the solution-processed fabrication of a molecular monolayer-based nonvolatile memory flexible device on a plastic substrate was successfully accomplished. We found that an rGO soft contact top electrode can play an important role in the conformational-change-dependent conductance switching process of an ABC10 SAM. Voltage-controlled trans-cis isomerizations of ABC10 molecules in a SAM were applied to an rGO/ABC10 SAM/rGO device, which showed stable nonvolatile memory operations.