Luminescence in Dy3+ and Eu3+ activated K3Al2(PO4)3

The Dy(3+) and Eu(3+) activated K(3)Al(2) (PO(4))(3) phosphors were prepared by a combustion synthesis. From a powder X-ray diffraction (XRD) analysis the formation of K(3)Al(2) (PO(4))(3) was confirmed. In the photoluminescence emission spectra, the K(3)Al(2)(PO(4))(3):Dy(3+) phosphor emits two distinctive colors: blue and yellow whereas K(3)Al(2)(PO(4))(3):Eu(3+) emits red color. Thus the combination of colors gives BYR (blue-yellow-red) emissions can produce white light. These phosphors exhibit a strong absorption between 340 and 400 nm which suggest that present phosphor is a promising candidate for producing white light-emitting diodes (LED).