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    Influence of annealing to the properties of un-doped and Co-doped CdO films
    (Elsevier Sci Ltd, 2014) Sahin, B.; Bayansal, F.; Yuksel, M.; Cetinkara, H. A.
    Un-doped and Co-doped CdO nanostructures were deposited on glass substrates by successive ionic layer adsorption and reaction (SILAR) method and annealed at 300 and 400 C. Morphological, structural and optical properties of the films were investigated by scanning electron microscope (SEM), X-ray diffractometer (XRD) and ultra violet-vis (UV-vis) spectrophotometry. The analyzed results indicate that Co-doping concentration and annealing temperature affect the properties of nanostructure cadmium oxide (CdO) films. XRD results showed that all of the films are polycrystalline cubic CdO with good crystallinity levels. With UV-vis. analysis at the room temperature it was found that the doping and annealing temperature changed optical properties of CdO films. (C) 2013 Elsevier Ltd. All rights reserved.
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    Influence of coumarin as an additive on CuO nanostructures prepared by successive ionic layer adsorption and reaction (SILAR) method
    (Elsevier Science Sa, 2013) Bayansal, F.; Sahin, B.; Yuksel, M.; Biyikli, N.; Cetinkara, H. A.; Guder, H. S.
    The effect of coumarin doping during the growth of CuO nanostructures by SILAR method has been studied. It was found that coumarin consider ably influences the growth process, manipulates the band-gap and modifies the crystallite size of the films. XRD experiments evidenced that with higher coumarin concentrations in the growth solution, the microstrain and dislocation density increased, while the crystallite size of the films decreased. SEM images revealed that the thicknesses of the plate-like nanostructures decreased with increasing coumarin concentration. By UV/vis spectrophotometer analysis it is found that the coumarin concentration affects both the optical band gap and the transmission rate: both the band gap and spectral transmittance values of the films decreased for higher coumarin content. (C) 2013 Elsevier B. V. All rights reserved.
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    Modification of morphological, structural and optical properties of SILAR-based growth of CuO films on glass-slides by addition of dextrin
    (Elsevier Science Sa, 2014) Bayansal, F.; Sahin, B.; Yuksel, M.; Cetinkara, H. A.
    This paper presents the effect of dextrin addition to the growth solution to prepare CuO nanostructures by SILAR method. Structural, morphological and optical properties of the films were investigated by means of XRD, SEM and UV/Vis. analysis. From the XRD data it is found that with increasing dextrin concentrations in the growth solution the crystallite size of the films decreased. SEM images showed that dextrin addition has a decreasing effect on grain size and changes the morphology drastically. By UV/Vis spectrophotometer analysis it is found that the dextrin concentration increases both the optical band gap value and the transmission rate. (C) 2014 Elsevier B.V. All rights reserved.