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<p>The SrTa<sub>2</sub>O<sub>6</sub> single-crystal samples with doped rare-earth (RE) ions (Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb for the doping concentration of 1.0&#xa0;mol% with respect to Sr) were grown by the floating zone method. These samples were used to investigate their photoluminescence (PL) and scintillation properties. The X-ray diffraction analysis verified that all samples were single-phase without detectable impurity phases. The PL and scintillation results showed emission due to the 4<i>f</i>–4<i>f</i> transitions of RE ions except for Ce- and Gd-doped ones. When integrated scintillation intensity was calculated, Pr-, Sm-, and Tb-doped samples exhibited high values in the ultraviolet to visible region (200–680&#xa0;nm), whereas in the near-infrared region (680–1650&#xa0;nm), high values were observed for Nd- and Yb-doped samples.</p>

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Photoluminescence and scintillation properties of rare-earth-doped SrTa2O6 single crystals

  • 期刊论文

  • 发表日期：

    2026年6月15日

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  • Yuta Tominaga,
  • Takumi Kato,
  • Akihiro Nishikawa,
  • Keiichiro Miyazaki,
  • Daisuke Nakauchi,
  • Noriaki Kawaguchi,
  • Takayuki Yanagida

摘要

The SrTa2O6 single-crystal samples with doped rare-earth (RE) ions (Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb for the doping concentration of 1.0 mol% with respect to Sr) were grown by the floating zone method. These samples were used to investigate their photoluminescence (PL) and scintillation properties. The X-ray diffraction analysis verified that all samples were single-phase without detectable impurity phases. The PL and scintillation results showed emission due to the 4f–4f transitions of RE ions except for Ce- and Gd-doped ones. When integrated scintillation intensity was calculated, Pr-, Sm-, and Tb-doped samples exhibited high values in the ultraviolet to visible region (200–680 nm), whereas in the near-infrared region (680–1650 nm), high values were observed for Nd- and Yb-doped samples.