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    Effect of annealing temperature on the physical properties of Mn3O4 thin film prepared by chemical bath deposition
    (Electrochemical Science Group, 2016) Ulutas, Cemal; Erken, Ozge; Gunes, Mustafa; Gumus, Cebrail
    In this study, Mn3O4 thin film was prepared by the chemical bath deposition (CBD) method on commercial microscope glass substrate deposited at 30° C. The Mn3O4 film was annealed in an air atmosphere for an hour at temperatures 100° C, 200° C, 300° C, 400° C, 500° C, respectively. The effect of annealing temperature on structural and optical properties such as optical constants of extinction coefficient (k), refractive index (n), the real (?1) and imaginary (?2) part of the dielectric constant and energy band gap (Eg) of the film were determined. The experimental characterization techniques included X-ray diffraction (XRD), UV-vis spectrophotometer and Hall effect measurement. XRD analysis showed that the film is grown in a polycrystalline structure in tetragonal phase. The conductivity of the film as a function of annealing temperature was measured as (1.32-6.65)×10-6 (?cm)-1. © 2016 The Authors.
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    Öğe
    Effect of Annealing Temperature on The physical Properties of Mn3O4 Thin Film Prepared by Chemical Bath Deposition
    (Esg, 2016) Ulutas, Cemal; Erken, Ozge; Gunes, Mustafa; Gumus, Cebrail
    In this study, Mn3O4 thin film was prepared by the chemical bath deposition (CBD) method on commercial microscope glass substrate deposited at 30 degrees C. The Mn3O4 film was annealed in an air atmosphere for an hour at temperatures 100 degrees C, 200 degrees C, 300 degrees C, 400 degrees C, 500 degrees C, respectively. The effect of annealing temperature on structural and optical properties such as optical constants of extinction coefficient (k), refractive index (n), the real (epsilon(1)) and imaginary (epsilon(2)) part of the dielectric constant and energy band gap (E-g) of the film were determined. The experimental characterization techniques included X-ray diffraction (XRD), UV-vis spectrophotometer and Hall effect measurement. XRD analysis showed that the film is grown in a polycrystalline structure in tetragonal phase. The conductivity of the film as a function of annealing temperature was measured as (1.32-6.65)x10(-6) (Omega cm)(-1).
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    Öğe
    Synthesis of Mn-doped ZnS Thin Films by Chemical Bath Deposition: Optical Properties in the Visible Region
    (Amer Inst Physics, 2017) Erken, Ozge; Gunes, Mustafa; Gumus, Cebrail
    Transparent ZnS: Mn thin films were produced by chemical bath deposition (CBD) technique at 80 degrees C for 4h, 6h and 8h durations. The optical properties such as optical transmittance (T %), reflectance (R %), extinction coefficient (k) and refractive index (n) were deeply investigated in terms of contribution ratio, wavelength and film thickness. The optical properties of ZnS: Mn thin films were determined by UV/vis spectrophotometer transmittance measurements in the range of lambda= 300-1100 nm. Optical transmittances of the films were found from 12% to 92% in the visible region. The refractive index (n) values for visible region were calculated as 1.34-5.09. However, film thicknesses were calculated between 50 and 901 nm by gravimetric analysis.