Template-free electrodeposition of highly oriented and aspect-ratio controlled ZnO hexagonal columnar arrays.
We report an easy one-step template-free electrodeposition method for preparing large arrays of ZnO hexagonal nanocolumns, vertically oriented on a Au-coated Si substrate. Systematic scanning electron microscopy investigations revealed the potential of this method for obtaining a high degree of verticality and orientation of the nanostructures and for controlling their aspect-ratio in an easy manner. Further structural studies demonstrated that the as-obtained ZnO nanocolumns present a well defined hexagonal symmetry exhibiting an excellent crystallinity.
Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Croix du Sud 1, Louvain-la-Neuve, Belgium. vlad.antohe@uclouvain.be
Vlad Andrei
VA
Antohe
Loïk
L
Gence
Sandeep Kumar
SK
Srivastava
Luc
L
Piraux