Mg,Ce co-doped Lu2Gd1(Ga,Al)5O12 by micro-pulling down method and their luminescence properties

Kei Kamada, Hiroaki Yamaguchi, Masao Yoshino, Shunsuke Kurosawa, Yasuhiro Shoji, Yuui Yokota, Yuji Ohashi, Jan Pejchal, Martin Nikl, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The effects of Mg co-doping on the scintillation properties of Ce:Lu2Gd1(Ga,Al)5O12 (LGGAG) single crystals with different Ga/Al ratios were investigated. Mg co-doped and non co-doped Ce:LGGAG single crystals were grown by the micro-pulling down (μ-PD) method and then cut, polished and annealed for each measurement. Absorption spectra, radioluminescence (RL) spectra, pulse height spectra, and scintillation decay were measured to reveal the effect of Mg co-doping. Ce4+ charge transfer (CT) absorption band peaking at ∼260nm was observed in Mg co-doped samples, which is in good agreement with previous reports for the Ce4+ CT absorption band in other garnet-based crystals. The scintillation decay time tended to be accelerated and the light yield tended to be decreased by Mg co-doping at higher Ga concentrations.

Original languageEnglish
Article number04FJ06
JournalJapanese journal of applied physics
Volume57
Issue number4
DOIs
Publication statusPublished - 2018 Apr

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Mg,Ce co-doped Lu<sub>2</sub>Gd<sub>1</sub>(Ga,Al)<sub>5</sub>O<sub>12</sub> by micro-pulling down method and their luminescence properties'. Together they form a unique fingerprint.

Cite this