▎ 摘　　要

We attached monolayer graphene sheets grown by chemical vapor deposition to porous alumina membranes with hexagonal pore arrays to introduce strain distribution. We have demonstrated by the dynamic force mode of atomic force microscopy that graphene sheets on porous alumina membranes with different diameters (60, 90, and 170 nm) were deformed according to the shape of the membrane surface. As a result, locally triangular strains are introduced into the graphene sheets in a wide area. We also confirmed the strain introduction by the G- and 2D-peak shift fashions of the Raman spectra. Porous alumina membranes are useful for strain engineering of graphene sheets because introduction of periodic, triangular strain is possible.