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Crystal growth and scintillation properties of Ce-doped PrAlO3

Authors
Journal
Optical Materials
0925-3467
Publisher
Elsevier
Publication Date
Volume
30
Issue
1
Identifiers
DOI: 10.1016/j.optmat.2006.11.050
Keywords
  • Ce-Doping
  • Micro-Pulling-Down Method
  • Oxides
  • Scintillator Material

Abstract

Abstract Using the micro-pulling-down method, the undoped and Ce 3+-doped PrAlO 3 single crystals were grown. Absorption spectra and luminescence characteristics under UV and X-ray excitations were measured at room temperature. Weak 5d–4f emission of Pr 3+ was found at 265 nm in the undoped sample. Energy transfer from the Pr 3+ sublattice to Ce 3+ ions seems plausible, but absence of efficient Ce 3+ emission was found and explained as due to the positioning 5d 1 relaxed excited state of Ce 3+ within the host conduction band.

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