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Intrinsic and Ce3+-Related Luminescence in Single Crystalline Films and Single Crystals of LuAP and LuAP:Ce Perovskites.
- Source :
- IEEE Transactions on Nuclear Science; Jun2008 Part 2, Vol. 55 Issue 3, p1192-1196, 5p, 2 Charts, 8 Graphs
- Publication Year :
- 2008
-
Abstract
- Intrinsic and Ce-related luminescence of LuAP:Ce single crystalline films (SCF) in comparison with their bulk single crystal (SC) analogs were analyzed for the first time using the time-resolved luminescence spectroscopy under synchrotron radiation excitation. Difference in luminescent properties of SCF and SC are due to the absence of the Lu-at-Al-site antisite defects (AD) and extremely low concentration of vacancy-type defects (VD) in SCF. SCF contamination by Pb ions from flux is noted, which gives rise to an additional emission band in UV range. In SCF, the absence of emission and trapping centers formed by the mentioned AD and VD can explain their favorable timing characteristics with respect to SC. The role of Pb<superscript>2+</superscript> trace impurities in LuAP-based SCF scintillators is considered as well. [ABSTRACT FROM AUTHOR]
- Subjects :
- LUMINESCENCE
CRYSTALS
PEROVSKITE
SPECTRUM analysis
RADIATION
SYNCHROTRONS
Subjects
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 55
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 33155928
- Full Text :
- https://doi.org/10.1109/TNS.2008.915690