Radioluminescence study of rare earth doped some yttrium based phosphors

AYVACIKLI M., EGE A., EKDAL KARALI E., Popovici E., Can N.

Optical Materials, cilt.34, sa.11, ss.1958-1961, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 11
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.optmat.2012.05.023
  • Dergi Adı: Optical Materials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1958-1961
  • Anahtar Kelimeler: Yttrium tantalate, Yttrium niobate, Radioluminescence (RL), Phosphors, Rare earths
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

This paper reports the luminescence emission spectra of Y(Ta,Nb)O 4 activated by rare earth ions such as Eu3+ and Tb 3+. The influence of these rare earth ions on the radioluminescence (RL) of yttrium niobate and tantalate phosphors was investigated. The luminescent properties were studied under X-ray and preliminary RL measurements to further evaluate prepared materials. The emission centers of the rare earth activators (Eu3+, Tb3+) were found to contribute efficiently to the total luminescence. With their various luminescence chromaticities, these rare earth activated phosphors are promising materials for solid-state lighting applications as well as for X-ray intensifying screens in medical diagnosis, providing the broad band variation of visible RL from blue to red. © 2012 Elsevier B.V. All rights reserved.