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Title: Bending stiffness and interlayer shear modulus of few-layer graphene

Interlayer shear deformation occurs in the bending of multilayer graphene with unconstrained ends, thus influencing its bending rigidity. Here, we investigate the bending stiffness and interlayer shear modulus of few-layer graphene through examining its self-folding conformation on a flat substrate using atomic force microscopy in conjunction with nonlinear mechanics modeling. The results reveal that the bending stiffness of 2–6 layers graphene follows a square-power relationship with its thickness. The interlayer shear modulus is found to be in the range of 0.36–0.49 GPa. The research findings show that the weak interlayer shear interaction has a substantial stiffening effect for multilayer graphene.
Authors:
; ;  [1]
  1. Department of Mechanical Engineering, State University of New York at Binghamton, Binghamton, New York 13902 (United States)
Publication Date:
OSTI Identifier:
22395703
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMIC FORCE MICROSCOPY; BENDING; COMPUTERIZED SIMULATION; FLEXIBILITY; GRAPHENE; LAYERS; NONLINEAR PROBLEMS; SHEAR; SHEAR PROPERTIES; SUBSTRATES