Very recently, phosphorene, a single-layer of black phosphorus, has attracted extensive attention as a new star in the family of 2D materials. Similar to carbon nanotube, a phosphorene nanotube can also be constructed theoretically from a phosphorene sheet. The phosphorene sheet has a relatively low Young's modulus and fracture strength in comparison with the graphene. Hence, it is necessary to have an insight into the mechanical properties of phosphorene nanotube. In this study, the effects of temperature and nanotube diameter on the mechanical properties and fracture behavior of armchair phosphorene nanotubes under uniaxial tensile loading are investigated by using molecular dynamics simulations.
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