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  • 09월 03일 23시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Chemically induced transformation of CVD-grown bilayer graphene into single layer diamond

등록일
2018년 8월 3일 11시 03분 55초
접수번호
0058
발표코드
KCS1-2 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
수 15시 : 45분
발표형식
심포지엄
발표분야
KCS - [IBS Symposium] Recent Advances in Carbon Materials
저자 및
공동저자
Pavel Bakharev
CMCM, IBS Center for Multidimensional Carbon Materials, Korea
In this work, we report on the first experimental observation of the fluorine chemisorption induced sp2 to sp3 phase transition of large-area bilayer graphene to diamond-like film under moderate conditions (near-room temperature and at a low pressure (less than one atmosphere and the structure is stable at 1 atm)). The synthesis of a novel ultra-thin diamond-like material, namely fluorinated diamond monolayer (‘F-diamane’), has been achieved in two ways. The first is the fluorination of bilayer graphene on single crystal metal (CuNi(111) alloy) foil, on which the bilayer graphene was grown by chemical vapor deposition (CVD). The other is fluorination of the same type of CVD bilayer graphene film transferred onto TEM (transmission electron microscopy) gold grids to obtain F-diamane film “suspended” on a chemically inert support. Our spectroscopic, transmission electron microscopy, and density functional studies unequivocally show that the fluorine chemisorption on CVD-grown bilayer graphene under certain conditions results in formation of F-diamane.

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