[Spectroscopic characteristics of Ce3+ doped Ca3Al2M3O12 (M=Si, Ge) garnets].
The spectral properties of Ce3+ doped Ca3Al2M3O12 (M = Si, Ge) garnets have been reported under excitation of UV light. The emission spectra of Ce3+ ion in garnets consist of a broad band assingning to the 5d-4f transition of Ce3+ ion. The emission intensity Ce3+ ion in Ga3Al2Ce3O12 shows very weak, but in Ga3Al2SiO12 shows strong. The emission intensity of Ce3+ ion is greatly enhanced by adding Gd3+ or flux into Ca3Al2Si3O12: Ce garnet. At 295 and 77K, the fluorescence decay of Ce3+ ions in Ca3Al2Si3O12 garnet have been measured and the fluorescence lifetimes of Ce3+ ions are 46 and 49ns, respectively.
Yuan
J
J
Changchun Institute of Physics, Academia Sinica, 130021 Changchun.
Liu
X
X