| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Graphene Synthesis under Free Molecular Flow on Confined Metal Catalyst |
| 초록 |
Chemical vapor deposition of graphene has received much attention for the mass production of large-area graphene. The size of the CVD-grown graphene depends on the catalytic area, which determines the size of the CVD chamber. We suggest a method that uses roll-stacked Ni catalysts to maximize the synthesis area and the efficiency of graphene growth. Graphene grown using this stacked system showed reproducible, uniform properties along the coiled Ni surface. We also systematically controlled the gas flow and size of the interfacial gap between stacks. The confined geometry of the stacked system follows non-continuum fluidic dynamics as the gap decreases; these affect the dissolution of carbons into Ni catalysts. Moreover, the evolution of the catalytic Ni surface under stacked system results in larger grains with increased (111) planes. Graphene growth using a confined coil is suitable for efficient, large-area mass production of high-quality multi-layer graphene. |
| 저자 |
봉효진1, 조새벽1, 강보석2, 김현호1, 이성규1, 이효찬1, 조길원1
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| 소속 |
1POSTECH, 2POSTECh |
| 키워드 |
Graphene synthesis; CVD-grown graphene
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| E-Mail |
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