Inorganic Materials

, Volume 36, Issue 11, pp 1083–1087

Deep traps in CaS:Eu and CaS:Ce phosphors

  • A. N. Georgobiani
  • A. N. Gruzintsev
  • T. V. Nikiforova
  • Xu Xurong
  • Yongsheng Wang
Article

Abstract

The photoluminescence, thermoluminescence, and excitation spectra of CaS:Eu and CaS:Ce phosphors containing various coactivators were measured. The spectra of deep trapping levels in these phosphors were studied for the first time. Optical information writing and storage effects were found in the UV range for both phosphors and in the visible range for CaS:Eu. The written optical information can be readout by IR irradiation.

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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • A. N. Georgobiani
    • 1
  • A. N. Gruzintsev
    • 2
  • T. V. Nikiforova
    • 2
  • Xu Xurong
    • 3
  • Yongsheng Wang
    • 3
  1. 1.Russian Academy of SciencesLebedev Institute of PhysicsMoscowRussia
  2. 2.Russian Academy of SciencesInstitute of Microelectronics Technology and High-Purity MaterialsMoscow oblastRussia
  3. 3.Institute of OptoelectronicsNorthern Jiao Tong UniversityBeijingPeople’s Republic of China

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