Conversion of ZnO Nanorod Arrays into ZnO/ZnS Nanocable and ZnS Nanotube Arrays via an in Situ Chemistry Strategy

摘要

Vertically aligned ZnO nanorods with uniform diameter and length have been synthesized on a zinc foil substrate with ammonium persulfate as oxidant via a facile,larger scale production and inexpensively synthesized method without any templates or additives.SEM and XRD studies indicate that ZnO nanorods are well-oriented along the c-axis.The PL spectrum indicates that our as-synthesized ZnO nanorods with a stronger and wider green emission are promising candidates as electron nanoconductors in nano-optoelectronic devices.Furthermore,by an effective thioglycolic acid-assisted solution route,well-aligned ZnO/ZnS nanocable and ZnS nanotube arrays have been successfully synthesized.ZnS nanotubes show a perfect hexagonal and obvious tubular shape.Our present strategy shows mild growth conditions and good reproducibility.