▎ 摘　　要

Long and few-layer thickness graphene ribbons (GRs) were fabricated through an efficient process from a well-ordered array of ZnO-C core-shell hexagonal nanorods that were formed by thermally heating zinc acetate dihydrate in a sealed chamber. The lengths and widths of the GRs were as high as similar to 50 mu m and 100-400 nm, respectively. The GRs could be highly dispersed (similar to 2 mg mL(-1)) in 1-methyl-2-pyrrolidinone and exhibited a good electrical conductivity (5107 S m(-1)). The highly dispersed and highly conductive GRs were applied to the fabrication of a GR-polyimide composite film that exhibited good mechanical properties while preserving the film transparency.