Abstract
Ce–doped Ca(Gd,Y)Al3O7 single crystals were synthesized by the optical floating zone method, and the photoluminescence and scintillation properties were evaluated. Photoluminescence and scintillation with a broad band around 420 nm are observed in all the samples. The decay curves are well–approximated by a sum of two exponential functions, which are due to the 5d–4f transition of Ce3+ and intrinsic luminescence in the host material. As a result of the pulse height spectra under γ–rays irradiation from 241Am, the CaYAl3O7 sample shows the highest scintillation light yield of 6500 ph/MeV among the present samples.
Original language | English |
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Article number | 109497 |
Journal | Optical Materials |
Volume | 98 |
DOIs | |
Publication status | Published - 2019 Dec |
Keywords
- Afterglow
- Cerium
- Melilite
- Photoluminescence
- Scintillator
- Single crystal
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Computer Science(all)
- Atomic and Molecular Physics, and Optics
- Spectroscopy
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Electrical and Electronic Engineering