Item request has been placed! ×
Item request cannot be made. ×
loading  Processing Request

LUMINESCENCE BEHAVIOUR OF DY3+ ION DOPED MAGNESIUM SULFOBORATE PHOSPHOR FOR WHITE LIGHT EMITTING DIODES

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
  • معلومة اضافية
    • الموضوع:
      2021
    • Collection:
      Zenodo
    • نبذة مختصرة :
      Several studies showed the interesting properties of trivalent lanthanide ions when doped in various types of phosphor. Magnesium sulfoborate phosphor doped with different concentrations of Dy3+ were synthesized using solid-state reaction method at 850 °C for 4 hours. The samples were characterized by X-ray Diffraction (XRD). The excitation and luminescence properties of MgO-SO4-B2O3:Dy3+ were determined. The emission spectrum of Dy3+ ion doped MgO-SO4-B2O3 phosphor exhibit three bands at 480 nm, 573 nm and 660 nm with excitation of 386 nm due to 4F9/2 →6H15/2, 6H13/2 and 6H11/2 of Dy3+ transitions, respectively. The excitation spectrum of Dy3+ ion doped MgOSO4-B2O3 phosphor display several bands at 347 nm, 362 nm, 386 nm, 426 nm, 449 nm and 469 nm with emission of 573 nm, which is in agreement with the ultraviolet LED (349.9–410 nm) and blue LED (450–470 nm). An intense in the emission peak at 573 nm in the yellow region was observed with the 0.5 Dy2O3. The luminescence properties of phosphor show that MgO-SO4-B2O3:Dy3+ phosphor could be potentially used as white LEDs
    • Relation:
      https://zenodo.org/communities/ojn; https://zenodo.org/record/4836028; https://doi.org/10.5281/zenodo.4836028; oai:zenodo.org:4836028
    • الرقم المعرف:
      10.5281/zenodo.4836028
    • Rights:
      info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by/4.0/legalcode
    • الرقم المعرف:
      edsbas.368E69D7