Nanostructured Zig-Zag Γ-Mo2n Thin Films Produced by Glancing Angle Deposition for Flexible Symmetrical Solid-State Supercapacitors

•Zig-zag structured porous γ-Mo2N films were prepared by glancing angle sputtering.•A solid-state symmetric zig-zag γ-Mo2N supercapacitor device was produced.•The device achieves both superior high energy density and power density.•The device exhibits excellent cycling stability and desirable mechanical flexibility.•The open porous nanostructure accelerates ion diffusion and electron transfer.