Abstract
This paper investigates the role of Au pre-deposited layer in the growth of MgO structures by chemical vapor deposition (CVD) technique. Pre-deposition layer in the form of Au thin film of different thicknesses, and size selected Au nanoparticles have been used for this purpose. The diameter of the MgO rods is found to be related to the thickness of the pre-deposited layer. When Au thin films are used, diameter of the nanorods is observed to be larger than the size of Au particles formed after annealing the pre-deposited film. It has also been demonstrated that the diameter of MgO nanorods can be controlled by using size-selected and well separated Au nanoparticles on the Si substrate.
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