Peeling methods of high quality graphene from metal catalysts by low-cost

2014 Fiscal Year Final Research Report

• Project/Area Number: 25870064
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Composite materials/Surface and interface engineering; Nanomaterials chemistry
• Research Institution: Tohoku University
• Principal Investigator: OGAWA Shuichi 東北大学, 多元物質科学研究所, 助教 (00579203)
• Research Collaborator: YAMADA Takatoshi ; OJIRO Yoshihiro ; TANG Jiayi
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: CVD / グラフェン / Cu / 光電子分光 / 酸化

Outline of Final Research Achievements

(1) Confirmation of oxidation resistance of graphene and catalysts oxidation using H2O: Oxidation rate on graphene (Gr)/Cu substrates decreases compared with it on Cu surfaces. This is because graphene plays a role of barrier layer for oxygen and O2 cannot reach Gr/Cu interface. For fast oxidation of Gr/Cu substrates, H2O is proposed as oxidant in behalf of O2.
(2) Finding of the stopping power of Cu2O films for C atom diffusion: It was found that Cu2O films can intercept the C atom diffusion into Cu bulk substrate. Using this knowledge, high quality graphene can be grown on Cu2O/Cu substrates.

Free Research Field

表面プロセス工学