Optical and Structural Properties of Mg Doped ZnO Thin Films

Abstract

Thin films of ZnO and Mg doped ZnO were prepared by chemical spray pyrolysis. . The optical energy gap was increased from (3.27-3.54) eV as the Mg content increases, while all the optical parameters show a reverse behavior, that n, k,  1,  2 and σ decrease as the Mg content increases. These films were characterized through the use of XRD technique. The results are found to be corresponding to polycrystalline and show a wurtzite hexagonal crystal structure, with a preferred orientation along the ZnO (002) plane