Abstract
In this study, ZnO-NiO binary metal oxides were synthesized by pulsed laser deposition regarding applications as gas sensors. The technology was applied in air at atmospheric pressure. A compound target fabricated by partially covering a ZnO pellet by a Ni slice was used for ablation. The structure, morphology, composition, and optical properties of the as deposited samples were studied. It was found that composites consisting of ZnO and NiO were formed during the ablation process in air. Generally, the morphology of the as deposited specimens represented a highly porous nanostructure. The samples’ microstructure indicated that the nanostructures were formed by spherically-shaped crystalline ZnO and NiO nanoparticles. The results demonstrated that the ZnO-NiO fabricated samples possessed a high surface-to-volume ratio with considerable number of components attributed to oxygen-deficient states and to adsorbed species, which makes them suitable for gas-sensing applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
