Article
Role of Wrinkle Height in Friction Variation with Number of Graphene Layers
Journal of Applied Physics
Document Type
Article
Publication Date
1-1-2012
Disciplines
Abstract
Molecular dynamics simulations are performed to study the frictional behavior of graphene. It is found that the friction between a diamond tip and graphene decreases with increasing number of graphene layers. This behavior is also affected by the graphene sheet size; specifically, the effect of the number of layers on friction becomes significant only when the modeled graphene sheets exceed a critical length. We further show that the frictional behavior can be directly correlated to the height of near-contact wrinkles that resist sliding. These observations are rationalized in terms of the ability of multiple sheets to act as a single material as they resist wrinkle formation.
Citation Information
Zhijiang Ye, Chun Tang and Yalin Dong. "Role of Wrinkle Height in Friction Variation with Number of Graphene Layers" Journal of Applied Physics Vol. 112 (2012) p. 116102 Available at: http://works.bepress.com/yalin_dong/31/