Thin films of MnO_2, Mn_2O_3, and Mn_3O_4 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 Mn_2O_3 films could be formed. The films were thermally annealed at different temperatures between 300 and 800C to create different crystalline structure. Even under the air-annealing condition, Zn doping results in a structural transformation from cubic Zn_{x}Mn_{2-x}O_3 to tetragonal Zn_{x}Mn_{3-x}O_4. 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 Mn_2O_3 and Mn_3O_4 films have been investigated by pointwise unconditioned minimization approach.
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.