Luminescence and scintillation characteristics of Cs3ScCl6:Ce crystals

Keisuke Takahashi, Miki Arai, Masanori Koshimizu, Yutaka Fujimoto, Takayuki Yanagida, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we fabricated Cs3ScCl6 crystals doped with different concentrations of Ce and investigated their luminescence properties. In both the photoluminescence (PL) and scintillation spectra, emission bands attributable to Ce3+ 5d–4f transition were observed. The PL temporal profiles revealed decay time constants of ~35 ns, which are typical values for Ce3+ 5d–4f transition. In the scintillation temporal profiles, two decay components were observed. The fast and slow components could be attributed to Ce3+ 5d–4f luminescence and self-trapped excitons (STEs) or a slow energy transfer from STEs to Ce3+, respectively. The maximum light yield was 9200 photons/MeV for a Ce concentration of 0.5 mol%.

Original languageEnglish
Pages (from-to)26346-26349
Number of pages4
JournalCeramics International
Volume46
Issue number16
DOIs
Publication statusPublished - 2020 Nov

Keywords

  • Ce+ 5d-4f transition
  • Inorganic crystals
  • Scintillator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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