2014/05/31 by Jin-Wu Jiang, Harold S. Park · 176 citations
Chemistry · Materials Science · Physics and Astronomy · #2D Materials and Applications #Buckling #Chemistry #Composite material #Graphene #Graphene research and applications #Heterojunction #Lattice (music) #MXene and MAX Phase Materials #Materials science #Modulus #Molecular dynamics #Nanotechnology #Optoelectronics #Physics #Stiffness #Tension (geology) #Ultimate tensile strength #Uniaxial tension #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.4891342
published in Applied Physics Letters 105(3) (American Institute of Physics) · Appl. Phys. Lett., published
openalex publication_date 2014/07/21 · arxiv created 2014/07/26 · arxiv updated 2014/07/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We perform classic molecular dynamics simulations to comparatively investigate the mechanical properties of single-layer MoS2 and a graphene/MoS2/graphene heterostructure under uniaxial tension. We show that the lattice mismatch between MoS2 and graphene will lead to an spontaneous strain energy in the interface. The Young's modulus of the heterostructure is much larger than that of MoS2. While the stiffness is enhanced, the yield strain of the heterostructure is considerably smaller than the MoS2 due to lateral buckling of the outer graphene layers owning to the applied mechanical tension.