Abstract
Sr3Y2 (BO3)4: Eu3+ phosphor codoped with Gd3+ and La3+ was generated using the solid state method, and XRD and fluorescence spectrum researched the structure and luminescence properties. The strongest excitation peak of Sr3Y2 (BO3)4:Eu3+ is in the near ultraviolet region of 394 nm, which comes from the 7F0 → 5L6 transition of Eu3+. With the stimulation of 394 nm ultraviolet-light, the strongest emission of Sr3Y2 (BO3)4:Eu3+ phosphor is a red light with a wavelength of 618 nm. It is produced by the transition of 5D0 → 7F2 of Eu3+. The optimum preparation temperature is 1000°C, and the doping amount of Eu3+ is 5% (mol). The doping of Gd3+ and La3+ greatly enhanced the luminescent intensity of Sr3Y2 (BO3)4:Eu3+ phosphor, and the doping of 20% (mol) was suitable.
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