Photoluminescence and scintillation properties of Yb2+-doped SrCl2 crystals

Dai Sekine, Yutaka Fujimoto, Masanori Koshimizu, Daisuke Nakauchi, Takayuki Yanagida, Keisuke Asai

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8 Citations (Scopus)

Abstract

The photoluminescence and scintillation properties of undoped SrCl2 and SrCl2:Yb2+ (0.025, 0.25, 0.5, and 1 mol%) crystals have been investigated. These crystals were grown by the vertical Bridgman method. We observed two emission bands centered at 380 nm and 407 nm whose decay time constants are 500 ns and 550 μs, respectively, and are ascribed to spin-allowed (Ybsa) and spin-forbidden (Ybsf) Yb2+ 5d-4f transitions, respectively. 0.025%SrCl2:Yb2+ showed the highest light yield of 55 000 photons/MeV for various concentrations of SrCl2:Yb2+ and this value is comparable with 56 000 photons/MeV reported for 0.5%SrI2:Yb2+.

Original languageEnglish
Article number012005
JournalJapanese journal of applied physics
Volume59
Issue number1
DOIs
Publication statusPublished - 2020 Jan 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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