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    Facile fabrication and characterization of SnxCu(1-x)O composite films by the SILAR method on glass substrates
    (Elsevier Science Sa, 2016) Bayansal, F.; Yuksel, M.; Sahin, B.
    CuO composite thin films with Sn-doping are deposited on glass substrates by the SILAR method. All the films are characterized by metallurgical microscopy, scanning electron microscopy, energy dispersive Xray spectroscopy, X-ray diffraction, UV-Vis. spectroscopy and Raman spectroscopy. Metallurgical microscopy and scanning electron microscopy results revealed that homogeneity of the film surface distorts and particle size decreases from 110 to 43 nm with increasing Sn-doping. Energy dispersive X-ray spectroscopy evidences the amount of Sn in CuO films, which increases with increasing Sn concentration in the growth solutions. X-ray diffraction patterns showed that the mean crystallite size of the films is decreasing from similar to 14 to similar to 9 nm with increasing Sn-doping. Moreover, increase in Sn concentration results new peaks belong to SnO2 phases. UV-Vis. analysis showed that the transmittance and optical band-gap energy values of the films are increasing with increasing Sn-doping. Raman spectrum was also confirmed the phase formation of CuO nanostructures and it was seen that the Sn-doping caused shifts in Raman active modes. (c) 2015 Elsevier B.V. All rights reserved.
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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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    Influence of manganese concentration and annealing temperatures on the physical properties of CdO films grown by the SILAR method
    (Taylor & Francis Ltd, 2014) Sahin, B.; Bayansal, F.; Yuksel, M.
    Undoped and doped Cadmium oxide (CdO) films with different Mn concentrations were prepared on glass substrates by the successive ionic layer adsorption and reaction method and annealed at two different temperatures. Structural, morphological and optical conditions were performed by XRD, scanning electron microscope (SEM) and UV-vis spectrum measurements. The deposited films were dense and they adhere well to the glass substrates. From the SEM photographs, it was seen that Mn doping concentration and annealing process affect the morphologies of the nanostructures. It was found that the growth process modifies the microstructures of the CdO films. XRD results and UV-vis analysis reveal that the crystal structure and optical band gap of the films could be adjusted by varying the Mn concentration and annealing temperature. The results also indicate that there is a direct dependence of the physical and optical properties of the metal oxide films on doping concentration and annealing process.
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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.
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    Nano structured CdO films grown by the SILAR method: Influence of silver-doping on the morphological, structural and optical properties
    (Elsevier Sci Ltd, 2016) Yuksel, M.; Sahin, B.; Bayansal, F.
    Cadmium oxide films with and without silver-doping have been prepared by the SILAR method onto soda-lime-silica glass slides and characterized by scanning electron microscopy, UV-Visible spectroscopy and X-ray diffraction measurements. Scanning electron microscopy images show that increasing silver concentration contributed to adjust surface properties and led to a decrease in particle size from the UV-Visible spectroscopy analysis it was found that the optical band gap value of the films is increased with silver doping. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.