Energy transfer to the Ce3+ centers in Lu3Al5O12:Ce scintillator
Abstract
Luminescence spectra and scintillation decays under steady-state and pulsed X-ray excitations, respectively, are presented for undoped and Ce-doped Lu3Al5O12 single crystals at room temperature. The energy transfer from the trapped exciton state towards the Ce3+ centers appears rather inefficient. A negative influence of the shallow trapping states is evidenced, which results in delayed radiative recombination at the Ce3+ centers and slows down the scintillation response of the material.
- Publication:
-
Physica Status Solidi Applied Research
- Pub Date:
- May 2004
- DOI:
- Bibcode:
- 2004PSSAR.201R..41N
- Keywords:
-
- 78.47.+p;78.60.-b;78.60.Kn;81.05.Je;
- 78.47.+p;
- 78.60.-b;
- 78.60.Kn;
- 81.05.Je