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    Synthesis and characterization of TiO₂/SiO₂ thin film via SolGel method

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    Date
    2017-06
    Author
    Dewi Suriyani, Che Halin
    Mohd Mustafa Al Bakri, Abdullah
    Norsuria, Mahmed
    S N A, Abdul Malek
    Vizureanu, P
    ‪Ayu Wazira, Azhari
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    Abstract
    TiO₂/SiO₂ thin films were prepared by sol-gel spin coating method. Structural, surface morphology and optical properties were investigated for different annealing temperatures at 300°C, 400°C and 500°C. X-ray diffraction pattern show that brookite TiO₂ crystalline phase with SiO₂ phase presence at 300°C. At higher temperatures of 400-500°C, the only phase presence was brookite. The surface morphology of film was characterized by scanning electron microscopy (SEM). The films annealed at 300°C shows an agglomeration of small flaky with crack free. When the temperature of annealing increase to 400-500°C, the films with large flaky and large cracks film were formed which was due to surface tension between the film and the air during the drying process. The UV-Vis spectroscopy shows that the film exhibits a low transmittance around 30% which was due to the substrate is inhomogeneously covered by the films. In order to improve the coverage of the film on the substrate, it has to repeatable the spin coating to ensure the substrate is fully covered by the films.
    URI
    http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74583
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    • Dewi Suriyani Che Halin, Dr. [21]
    • Mohd Mustafa Al Bakri Abdullah, Prof. Dr. [277]

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