  Thin films of magnesium doped zinc oxide (MZO) were synthesized using the sol
gel method and annealed at different temperatures under ambient condition. The
morphological properties of the post annealed MZO films were investigated using
X ray diffraction (XRD) while atomic force microscopy (AFM) was employed to
probe the topographical alteration of the films. The optical properties of the
post annealed MZO films were examined by UV visible spectroscopy and the Tauc
method was used to estimate the optical band gap. The studies revealed that,
with the rise of annealing temperature the crystallinity and the surface
roughness of the MZO films were increased whereas the optical transmittance and
the energy bandgap were decreased.
