Spray coated nanostructured nickel oxide thin films for ethanol sensing

Abstract

Nanostructured nickel oxide (NiO) thm films were prepared using spray pyrolysis technique over cleaned glass substrate with nickel (11)-acetate tetrahydrate and nickel chloride as precursor. The substrate temperature during deposition is varied between 473 and 523 K to study the influence of temperature over the structural and electrical propehes of NiO thin films. The structural analysis of NiO thin films were carried out using X-ray Diffraction (XRD) technique and it is obsenred that the films are highly crystallinew ith face centered cubic structure. The surface morphology of NiO thm film samples was analyzed using Field Emission- Scanning Electron Microscope (FE-SEM). The sensing behavior of nanostructured NiO thin films towards various concentrations of ethanol was studied and reported. © 2012 Asian Network for Scientific Information.