Periodic micro/nanostructured arrays have attracted much interest due to their important applications in nanophotonics, field emitters, optical devices, sensors, and nano-biotechnology, etc.The traditional routes to periodic nanorod arrays are mainly based on lithographic techniques, i.e.photo-lithography, electron-beam lithography, x-ray lithography.However, they cannot be afforded due to the high costs and time-consuming in the most laboratories.