Nanostructured CdO thin films were prepared on glass substrates by spray pyrolysis technique using perfume atomizer
from fresh and aged (1, 2, 3 and 4 days) precursor solutions. XRD studies confirm that all the films exhibit cubic crystal
structure with a (1 11) preferential orientation. The 2θ value of the (1 1 1) plane shifts towards lower Bragg angles with
aging inferring an expansion in the lattice volume of the aged films. Increased crystallite size is observed for the 3-days aged
film for which minimum strain and dislocation density values are obtained. Optical transparency increases with increase in
aging period of the precursor solution and the optical band gap exhibit a red shift from 2.48 eV to 2.32 eV. A minimum
resistivity of 0.78 x 10-2 ohm-cm is observed for the CdO film prepared from 3-days aged solution. The obtained results infer
that the CdO film prepared from 3-days aged solution exhibit better physicalproperties
