Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5399845 | Journal of Luminescence | 2014 | 6 Pages |
Abstract
Absorption, luminescent and scintillation properties of Ce3+ doped Y3Al5âxGaxO12 crystals with Ga content in the x=1-5 range were investigated in this work and compared with the properties of YAG:Ce crystals. Apart from the traditional spectral methods (absorption, cathodoluminescence and light yield measurements), the intrinsic and Ce3+ related luminescence of Y3Al5âxGaxO12:Ce solid-solution were also investigated using the luminescent spectroscopy under excitation by synchrotron radiation in the 3.7-25Â eV range. We show that the optical properties Y3Al5âxGaxO12:Ce garnets monotonically change with increasing the Ga content in the x=0-3 range due to preferable localization of Ga ions in the tetrahedral position of the garnet lattice. At the highest Ga concentration (x>3) the deviation of the optical properties of Y3Al5âxGaxO12:Ce garnets is observed from the respective properties of these crystals with Ga content in the x=0-3 range due to occupation by Ga ions of the octahedral position in the garnet host.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Yu. Zorenko, T. Zorenko, P. Malinowski, O. Sidletskiy, S. Neicheva,