Influence of Energetic Xe132 Ion Irradiation on Optical, Luminescent and Structural Properties of Ce-Doped Y3Al5O12 Single Crystals
Assylbayev R. Tursumbayeva G. Baubekova G. Karipbayev Z.T. Krasnikov A. Shablonin E. Aralbayeva G.M. Smortsova Y. Akilbekov A. Popov A.I. Lushchik A.
August 2025Multidisciplinary Digital Publishing Institute (MDPI)
Crystals
2025#15Issue 8
The impact of 230-MeV Xe132 ion irradiation on the structural, optical, and luminescent properties of YAG:Ce single crystals is investigated over a fluence range of 1011–1014 ions/cm2. Optical absorption; cathodo-, X-ray, and photoluminescence; and X-ray diffraction are employed to analyze radiation-induced changes. Irradiation leads to the formation of Frenkel (F, F+) and antisite defects and attenuates Ce3+ emission (via enhanced nonradiative processes and Ce3+ → Ce4+ recharging). A redistribution between the fast and slow components of the Ce3+-emission is considered. Excitation spectra show the suppression of exciton-related emission bands, as well as a shift of the excitation onset due to increased lattice disorder. XRD data confirm partial amorphization and a high level of local lattice disordering, both increasing with irradiation fluence. These findings provide insight into radiation-induced processes in YAG:Ce, which are relevant for its application in radiation–hard scintillation detectors.
luminescence , optical absorption , radiation defects , swift heavy ion irradiation , Y3Al5O12:Ce
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High School of Natural Sciences, Margulan University, Toraigyrov Str. 58, Pavlodar, 140000, Kazakhstan
Institute of Physical and Technical Sciences, L.N. Gumilyov Eurasian National University, Munaitpasov Str. 13, Astana, 010008, Kazakhstan
Institute of Physics, University of Tartu, W. Ostwald Str. 1, Tartu, 50411, Estonia
Deutsches Elektronen-Synchrotron (DESY), Hamburg, 22603, Germany
Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, LV-1063, Latvia
High School of Natural Sciences
Institute of Physical and Technical Sciences
Institute of Physics
Deutsches Elektronen-Synchrotron (DESY)
Institute of Solid State Physics
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