STUDY THE OPTICAL PROPERTIES OF THE VARIOUS DEPOSITION SOLUTIONS OF ZnO NANORODS GROWN ON GLASS SUBSTRATE USING CHEMICAL BATH DEPOSITION TECHNIQUE

Abstract

In this study, two-step chemical bath deposition (CBD) technique has been employed for the fabrication of Zinc Oxide (ZnO) nanorods at low temperature. The ZnO nano-seed layer was deposited on the glass substrate using a radio frequency sputtering discharge technique. The impact of three zinc salts with Hexamethylenetetramine (HMTA) on the properties of ZnO nanorods have been investigated. The double beam UV visible (UV4100) spectrometer, micro-Raman scattering, and Field emission scanning electron microscopy (FESEM) were used to characterize and study the optical properties, energy band gap, defects, Raman spectra, phase orientation, quality of material, the interaction of phonons, transport properties, and the morphology of synthesized ZnO nanorods (NRs), respectively. The three zinc salts are Zinc Nitrate Hexahydrate, Zinc Acetate, and Zinc Chloride. The results found that the variation in zinc salts types with Hexamethylenetetramine as deposition solution is play a very important impact on the structures of fabricated ZnO nanorods that effected directly on the optical properties, energy band, material quality, and phase orientation of ZnO NRs. Also, from UV measurement the optical properties and energy band gap of produced ZnO nanorods are changed with changing the zinc salt as a precursor of deposition solution.