Mechanical properties of metal decorated graphyne, graphyne-BN-yne, and BN-yne sheets

Abstract: In this paper, the mechanical properties of two-dimensional structures of metal decoration systems of simple graphyne (CC), analogous system of BN sheet (BN-yne), also the graphyne-BN sheet (CC-BN-yne) was investigated. The properties such as Young and Bulk moduli were studied using Energy-Strain correlation. We introduced calculations based on density functional theory (DFT); the generalized gradient approximation (GGA) framework was used in this regard. The results demonstrated very competitive values for Young and Bulk moduli of the Pt decorated CC and BN-yne. However, the CC-BN-yne structure defined around 80% of Young and 77% of Bulk values of that of pure structures. Also Na decorated ones were examined and the results showed the same trend for all three structures. The CC-BN-yne defined the lowest values for either Young or Bulk moduli.