Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2010.06a
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- Pages.263-263
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- 2010
Characteristic of Ni and Co metal-catalyst surface roughness in graphene
Ni와 Co 촉매금속의 표면 거칠기에 따른 그래핀 성장 특성
- Kim, Eun-Ho (Sejong University) ;
- An, Hyo-Sub (Sejong University) ;
- Jang, Hyon-Chul (Sejong University) ;
- Cho, Won-Ju (Kwangwoon University) ;
- Lee, Wan-Kyu (National NanoFab center) ;
- Jung, Jong-Wan (Sejong University)
- Published : 2010.06.16
Abstract
High temperature annealing is required to synthesize graphene using CVD. When thin metal catalyst is used for the synthesis, the high temperature pre-annealing makes the thin catalyst highly agglomerated. We investigated the agglomeration effect on the shape of the synthesized graphene. It is found that high temperature annealing makes randomly distributed many hole or blister on metal catalyst, and the synthesized graphene features floral pattern around the hole. The floral patterns of graphene turned out to be multi-layers and higher D peaks in raman spectrum.
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