The VUV spectra properties of (Y,Gd)BO3 : Eu

The (Y, Gd) BO3 : Eu phosphor was synthesized by solid-state reaction, The UV spectra showed that in a certain range of Gd3+ concentration, more Gd3absorbed energy and transferred it to Eu3+ with its increasing concentratio n. From the spectra in VUV region, it was observed that both the doping and the concentrations of Gd3+, Eu3+ greatly affected the absorption of the ho st lattice. The absorbances at 147 nm and 170 nm increased when the Gd3+ wa s doped which can be explained as that Gd3+ transferred energy to BO4. The optical properties of (Y, Gd)BO3 : Eu were the best when the concentration of Eu3+ was about 0.04.