Influences of Annealing Temperature on the Optical and Structural Properties of Manganese Oxide Thin Film by Zn Doping from Sol-Gel Technique
S. Pishdadian and A.M. Shariati Ghaleno
Department of Physics, Shahrood Branch, Islamic Azad University, Shahrood, Iran
Received: February 26, 2012
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Thin films of MnO2, Mn2O3, and Mn3O4 have been grown from single precursor solution by varying the post-annealing condition on the glass and corning substrate using a sol-gel technique. By annealing in air and at temperature between 600 and 800°C, cubic Mn2O3 films could be formed. The films were thermally annealed at different temperatures between 300 and 800°C to create different crystalline structure. Even under the air-annealing condition, Zn doping results in a structural transformation from cubic ZnxMn2-xO3 to tetragonal ZnxMn3-xO4. X-ray diffraction, atomic force microscopy, and UV-visible spectra were used to characterize the effect of thermal annealing on the optical and structural properties of a Zn doped manganese oxide thin film. Optical properties of the Mn2O3 and Mn3O4 films have been investigated by pointwise unconditioned minimization approach.

DOI: 10.12693/APhysPolA.123.741
PACS numbers: 78.66.-w, 81.10.-h, 68.55.Jk