Seeded hydrothermal growth of ZnO nanorods on different substrates

Abstract

ZnO nanostructures were successfully fabricated on seeded unpolished Si(100) substrate using hydrothermal growth method without the use of any stabilizing agent in the seed layer precursor solution. The size of the seeds could be controlled by varying the number of depositions, and the presence of the seed layer was found to influence the formation of the ZnO structures such that it restricted their growth in the nano-regime. Moreover, the topography of the substrate surface resulted in clustered morphology and nonuniform orientation of the grown nanostructures.