Green-emitting sintered porous glass doped with rare earth ions suitable for UV-LED excitation

抄録

We report on one kind of green luminescent sintered porous glass which is doped with Tb3+, Gd3+, and Ce3+. The glass can emit strong green luminescence by excitation of long wavelength UV-LED. The fluorescence spectra reveal that the strong luminescence is mainly originated from the 5D4-7F5 transition of Tb3+. It is found that the fluorescence is strongly depended on the energy transfer from Ce3+ to Gd3+, and then to Tb3+.