Journal of Materials Science, Vol.43, No.1, 233-236, 2008
Emission analysis of Pr3+ & Ho3+: Ca4GdO(BO3)(3) powder phosphors
Emission spectral results of Pr3+ & Ho3+ ions doped Ca4GdO(BO3)(3) powder phosphors are reported here. XRD, SEM and FTIR measurements have been carried out for them. The emission spectrumof Pr3+: Ca4GdO(BO3)(3) has shown an emission transition D-1(2) -> H-3(4) at 606 nm with lambda(exci) = 480 nm (H-3(4) -> P-3(0)) and Ho3+: Ca4GdO(BO3)(3) phosphor has shown an emission transition S-5(2) -> I-5(8) at 549 nm with lambda(exci) = 447 nm (I-5(8) -> F-5(1)). Emission performances of these two phosphors have been explained in terms of energy level diagrams.