Control Growth Of Zno Nanorods By Chemical Bath Deposition: Study On Heat Treatment Effect

Bhagwat Nivruttti Pawar


Chemical Bath Deposition (CBD) is a simple aqueous solution and easy and reproducible method employed for systematically growth of zinc oxide (ZnO) thin film on glass substrate. The investigations on the effect of annealing temperature on the structural, optical properties and morphology of ZnO nanorod deposited by chemical bath deposition have been carried out. The films were specula and adherent to glass substrate. It is found that, annealing temperature significantly influence the quality of ZnO thin films. We proceeded to anneal ZnO films in air for 60 min from 150ºC to 300 ºC. X-ray diffraction (XRD) pattern showed that the deposited ZnO thin films was exhibited a polycrystalline structure of the wurtzite with monophasic of  hexagonal shaed naorods. No other phases were observed in XRD pattern. ZnO lattice crystals transformed from agglomerated random growth to long-and-slim hexagonal rods as observed by scanning electron microscopy (SEM).This approach can provide a novel and simple route to obtain ZnO nanostructures hexagonal rods, which may improve the properties of nanostructure based devices. 


Chemical bath, Structural, optical properties, wurtzite, ZnO nanorod

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