| Original Articles |
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Influence of Self-Absorption and Impurities on Scintillation Properties of (Lu0.1Y0.9)AlO3:Ce Single Crystals |
| DING Dong-Zhou;LU Sheng;QIN Lai-Shun;REN Guo-Hao |
| Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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DING Dong-Zhou, LU Sheng, QIN Lai-Shun et al 2006 Chin. Phys. Lett. 23 2570-2572 |
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Abstract Lu0.1Y0.9AlO3:Ce single crystals in dimensions ∅30×90mm3 are successfully grown by the Czochralski method. The light output and energy resolution of the crystal in dimensions ∅14×2mm3 are 9420 photons/MeV and 12.5% respectively. Dependence of the light output on the thickness of the sample is found and explained by the self-absorption in the range of 320--370nm and the underlying parasitic absorption around 250nm. In addition, the local enrichment of Ce ions and the presence of low-valent impurity ions may cause the deterioration of its light output. In addition, Lu0.1Y0.9AlO3:Ce has an almost constant fluorescence decay time of 16ns in the temperature range of 80--373K.
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| Keywords:
78.55.Hx
78.40.Ha
78.60.Hk
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Published: 01 September 2006
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| PACS: |
78.55.Hx
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(Other solid inorganic materials)
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78.40.Ha
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(Other nonmetallic inorganics)
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78.60.Hk
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(Cathodoluminescence, ionoluminescence)
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