Superlubric control of fullerene molecular bearings using graphene curvature

2016 Fiscal Year Final Research Report

• Project/Area Number: 26286053
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The University of Electro-Communications
• Principal Investigator: Sasaki Naruo 電気通信大学, 大学院情報理工学研究科, 教授 (40360862)
• Co-Investigator(Renkei-kenkyūsha): MIURA KOUJI 愛知教育大学, 教育学部, 教授 (50190583) ; SUZUKI MASARU 電気通信大学, 大学院・情報理工学研究科, 教授 (20196869) ; ITAMURA NORIAKI 成蹊大学, 理工学部, 助教 (90433854)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 表面・界面物性 / ナノトライボロジー / 超潤滑 / 接着 / 剥離 / グラフェン / フラーレン / 分子シミュレーション

Outline of Final Research Achievements

In order to investigate the influence of graphene curvature on superlubricity, molecular mechanics simulation of peeling process of monolayer graphene sheet adsorbed onto the graphite substrate was carried out. As the initial orientation angle of the graphene adsorption is varied little by little from the AB stacking orientation, the effect of lattice mismatch of the surface contact area appears, and the mean lateral force during the surface contact process markedly decreases to about 0 pN for the orientation angle of 9 deg. For larger orientation angle, the mean lateral force changed only slightly around 0 pN.

Free Research Field

ナノトライボロジー、表面物性理論、計算物質科学