Preparation and characterization of nanostructured ZnO thin film by electrophoretic deposition from ZnO colloidal suspensions

Nanostructured ZnO thin films were electrophoretically deposited from ZnO colloidal suspensions. The microstructural properties of the nanoparticles were examined through XRD and TEM techniques. ZnO nanocrystallites in a hexagonal wurtzite phase with the size in the range of 4-8 nm were synthesized through colloid synthesis. The deposition parameters were studied with the aim of producing a crack-free, dense and smooth ZnO thin film. The deposit weight can be controlled by adjusting several deposition parameters. The average optical transmittance of the obtained ZnO film was higher than 90% with light wavelengths from 450 to 700 nm.