Bending stiffness and interlayer shear modulus of few-layer graphene
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 09, 2015
- Source ID
- 10.1063/1.4915075
Entities
People
- Changhong Ke
- Chenglin Yi
- Xiaoming Chen
Organizations
- Air Force Office of Scientific Research
- Binghamton University