Growth of zinc oxide structures on silicon substrate via carbothermal reduction

Abstract

ZnO micro and nanostructures were observed to grow on Si substrate by carbothermal reduction method. Mole ratio of ZnO:C was variably set up to determine the dependence of ZnO growth on the amount of carbon precursor. Results of wet oxidation of as-deposited samples were used to explain the low yield of ZnO at higher mole ratio. Using SEM data, the vapor-liquid-solid method of ZnO synthesis was used to explain the role of ZnO microsphere with regards to the growth of other microstructures such as beads and rods.