Effect of the Pr3+ → Gd3+ energy transfer in multicomponent garnet single crystal scintillators

V. Babin, M. Nikl, Kei Kamada, A. Beitlerova, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Luminescence processes in the undoped and Pr3+-doped (Gd,RE)3(Ga,Al)5O12, RE = Lu,Y, multicomponent garnets are studied by time-resolved photoluminescence spectroscopy. Energy transfer processes between Pr3+ and Gd3+ causing significant deterioration of the scintillation performance are considered in detail. As is shown in current work, an overlap of the 5d1- 3H4 emission transition of Pr3+ and 8S-6Px absorption transition of Gd3+ results in unwanted depletion of Pr3+ 5d1 excited state and is further intensified by the concentration quenching in the Gd 3+-sublattice. This process explains a drastic decrease of light yield in Pr3+-doped Gd3+-containing multicomponent garnets observed in a previous work.

Original languageEnglish
Article number365303
JournalJournal of Physics D: Applied Physics
Volume46
Issue number36
DOIs
Publication statusPublished - 2013 Sep 11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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