Luminescence properties of rare earth ions in polytantalate

Shun Ichi Kubota, Hiasanori Yamane, Masahiko Shimada, Hirotsugu Takizawa, Tadashi Endo

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The luminescence properties of R3+ (R3+=Eu3+, Tb3+, Tm3+) in La1-xRxTa7O19 solid solution were systematically examined. In this host lattice, the distance between nearest neighbors of the La3+ site which were substituted by the R3+ ions, were very long (about 0.62 nm) and the sites locate two-dimensionally. The critical concentration at which the concentration quenching occurred under UV excitation were x=1.0 in La1-xEuxTa7O19, x=0.9 in La1-xTbxTa7O19 and x=0.14 in La1-xTmxTa7O19. Furthermore the energy migration process of these samples were investigated.

本文言語English
ページ(範囲)746-749
ページ数4
ジャーナルJournal of Alloys and Compounds
275-277
DOI
出版ステータスPublished - 1998 7 24

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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