| 초록 |
Graphene has attracted researchers with its superior conductivity, transparency, and strength. However, it is impossible to utilize the full ability of graphene because of domain boundaries formed during the chemical vapor deposition (CVD) method. In the domain boundaries, chemical and mechanical properties are decreased, so reducing the effects of the domain boundaries has been a key issue. Here, we provide the graphene domain structure depending on the pressure and the Cu lattice. The liquid crystal method was used for the observation of graphene domain, and EBSD, Raman mapping, and TEM were used for characterizing the synthesized graphene islands. The interaction between graphene domain formation and Cu domain was weaker in the atmospheric pressure compared to the low pressure. Also, growth morphologies of graphene domains in the initial stage were single domain in atmospheric condition. These results will help to improve understanding of the synthesis mechanism of CVD graphene. |
