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Author: Mariana Pavlova

  • MATERIALS

    Luminescent properties of sol-gel synthesized ZrO2 and Sm2O3 coatings on glass

    • Stancho Yordanov
    • Mihaela Aleksandrova
    • Vladimir Petkov
    • Shaban Usun
    • Mariana Pavlova
    Machines. Technologies. Materials., Vol. 19 (2025), Issue 4, pg(s) 146-149
    • Abstract
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    Thin coatings of zirconia oxide (ZrO2) and samarium oxide (Sm2O3) on glass have been prepared by using sol-gel method and dip coating technique. Materials were characterized in detail by X-ray diffraction. The luminescent properties at room temperature were also investigated. Excitation and emission spectra of ZrO2 coating consists of broad bands with maximums at 318 and 365 nm respectively.
    The photoluminescence measurements of samarium coating suggest that can be efficiently excited with 700 nm and consist of emission bands centered at 567, 603, 639 and 707 nm, consistent with characteristic Sm3+ transitions. The CIE (Commission Internationale de L’Eclairage) chromatic coordinates, color purity and color correlated temperature were determined.

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