A Non-Radiative Energy Transfer Model for Cerium-Doped Yttrium Aluminium Garnet (Ce: YAG)

Abstract

The luminescent properties of cerium‐doped yttrium aluminium garnet (Ce: YAG) under cathodolumi‐nescence are examined. The cerium emission is strongly affected by the presence of intrinsic defects in the crystal. It is shown that a model based on non‐radiative energy transfer is compatible with the results obtained from cathodoluminescence experiments.

Effect of oxidation annealing on optical properties of YAG:Ce single crystals

“…The conclusion that the near-UV emission is caused solely by the V O relaxation was supported mathematically [14,15], although Pujā ts et al had some critical remarks [16]. They suggested that the defect emission originates in the substitution defect of the yttrium ions in the site of aluminum ions called antisite defects (AD).…”