Abstract
The orientation control of ZnO nanocrystallites and the ability of assembling them in three dimensional arrays are essential for creating functional materials, such as solar cells, photonic devices, etc. In this article, the hydrothermal growth of large surface area, high quality, ZnO nanorods on glass substrate is reported. This route permits large scale fabrication of ZnO nanorods with a relatively low cost and potentially applicable in optoelectronic nano devices. The orientation of ZnO rods and wires can be controlled by controlling the temperature, pH of the reacting systems and the concentration of reactants. The products prepared under different conditions of the reacting precursors confirmed that the resulted nanorods are single crystals of hexagonal wurtzite structure and highly oriented along [002] direction in their structure.
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