Cu foils of 2x2cm<SUP>2</SUP> have been implanted with 70keV C<SUP>-</SUP> ions to nominal fluences of (2-10)x10<SUP>15</SUP>cm<SUP>-2</SUP> at room temperature (RT) and subsequently annealed at 900-1100...
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https://www.riss.kr/link?id=A107487448
Lee, J.S. ; Jang, C.W. ; Kim, J.M. ; Shin, D.H. ; Kim, S. ; Choi, S.H. ; Belay, K. ; Elliman, R.G.
2014
-
SCOPUS,SCIE
학술저널
267-271(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Cu foils of 2x2cm<SUP>2</SUP> have been implanted with 70keV C<SUP>-</SUP> ions to nominal fluences of (2-10)x10<SUP>15</SUP>cm<SUP>-2</SUP> at room temperature (RT) and subsequently annealed at 900-1100...
Cu foils of 2x2cm<SUP>2</SUP> have been implanted with 70keV C<SUP>-</SUP> ions to nominal fluences of (2-10)x10<SUP>15</SUP>cm<SUP>-2</SUP> at room temperature (RT) and subsequently annealed at 900-1100<SUP>o</SUP>C for 15min, before being cooled to RT to form graphene layers on the Cu surfaces. Analyses with Raman spectroscopy and atomic force microscopy demonstrate that a continuous film of bi-layer graphene (BG) is produced for implant fluences as low as 2x10<SUP>15</SUP>cm<SUP>-2</SUP>, much less than the carbon content of the BG films. This suggests that the implanted carbon facilitates the nucleation and growth of graphene, with additional carbon supplied by the Cu substrate (0.515ppm carbon content). No graphene was observed on unimplanted Cu foils subjected to the same thermal treatment. This implantation method provides a novel technique for the selective growth of graphene on Cu surfaces.
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