Abstract
Sr2SiO4: Eu0.01 phosphors co-doped with Dy3+ was prepared by solution combustion method at a low temperature of 500°C. The effect of co-dopant on the luminescent properties of Sr2SiO4: Eu was investigated in detail. The crystalline size and structural properties are studied by X-ray diffraction. The peaks of Sr2SiO4 are assigned by FTIR studies. Which shows that dopants have occupied the position of Sr2+ ions in the crystal. The morphology and size distribution of phosphors was examined by SEM. Image looks like thermocole particles in thermocole sheet. The photoluminescence (PL) intensity of Sr2SiO4: Eu co-doped with Dy3+ shows emission in all the three regions red, blue and green. Thermoluminescence (TL) of Sr2SiO4: Eu co-doped with Dy3+ was investigated using γ-irradiation for different mol% of Dy3+ in the dose range of 1–6 KGy at a warming rate of 5 °C/s.
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