Multifractal study of atomic force microscopic images of Al-doped ZnO thin films;

Surface topography,optical transmittance spectra and photoluminescence spectrum of Al-doped ZnO thin films,prepared by sol-gel method,were analyzed by atomic force microscope,UV-visible spectrophotometer and fluorescent spectrometry.

The electronic structure of pure Ag-doped and Ag-Al codoped wurtzite ZnO has been calculated by using first-principles ultra-soft pseudo-potential approach of the plane wave based upon the density functional theory,and the structure change, bandstructure,density of states and the influence of Ag-Al codoped wurtzite ZnO.