▎ 摘　　要

In this work, we consider the effect of out-plane strain on the electronic properties of AB-stacked bilayer armchair graphene nanoribbons (BAGNRs) using density functional theory. At equilibrium, the interlayer distance of BAGNRs is d(0) = 3: 326 angstrom. Our DFT calculations show that while the dependence of the band gap of 11-BAGNR on interlayer distance d is insignificant, especially in the case of the d < d(0), the band gap of 9- and 10-BAGNRs depends strongly on the interlayer distance d. The effect of out-plane strain on band structure, total energy, and total charge density of BAGNRs is also investigated and discussed.