Analysis of luminescence spectra and decay kinetics of LYSO:Ce scintillating crystals with varied yttrium content
Autor: | Jianjun Xie, B.N. Wan, Yuntao Wu, J. Y. Shi, Wang Linwei, Dongzhou Ding |
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Rok vydání: | 2021 |
Předmět: |
010302 applied physics
Scintillation Materials science Photoluminescence Process Chemistry and Technology Analytical chemistry chemistry.chemical_element 02 engineering and technology Yttrium 021001 nanoscience & nanotechnology 01 natural sciences Lyso Surfaces Coatings and Films Electronic Optical and Magnetic Materials Crystal chemistry 0103 physical sciences Materials Chemistry Ceramics and Composites Photoluminescence excitation Emission spectrum 0210 nano-technology Luminescence |
Zdroj: | Ceramics International. 47:16918-16925 |
ISSN: | 0272-8842 |
Popis: | This work aims to fully analyze the luminescence spectra and time response properties of LYSO:Ce (Lu2-2xY2xSiO5:Ce) scintillation crystals with different Y contents. The photoluminescence excitation (PLE) and emission (PL) spectra of Ce1 and Ce2 luminescence centers in LYSO:Ce crystals with different Y contents have been systematically examined. The shape of photoluminescence emission spectra and the contribution of the energy transfer process between Ce1 and Ce2 have been varied with the yttrium content in the crystal. Based on the photoluminescence and scintillation decay time measurements, a table has been shown to provide the relationship between the decay time and Y content in the crystal. Meanwhile, the afterglow measurements demonstrate the relationship between long-lived delay recombination processes and the free carrier traps existing in the bandgap, and the source of afterglow has been analyzed. |
Databáze: | OpenAIRE |
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