One-Step Synthesis of ZnO Films by Chemical Bath Deposition Not Using Thermal Annealing

Abstract

The novelty of the present study lies in synthesized ZnO film in a single step by chemical bath deposition. The typical conversion of zinc hydroxide (Zn(OH) 2 ) into ZnO material through thermal annealing is not required. A direct synthesis has achieved using four different zinc salt sources, yielding equivalent results. All the synthesized ZnO films were non-specular and adhered well to the glass slide substrates. We present the results of the structural, optical, and morphological characterization techniques. These revealed a hexagonal structure, a band-gap energy of around 3.2 eV, and a hexagonal nanorod shape for all the synthesized ZnO films.