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LUMINESCENCE PROPERTIES OFLiKGdF5CRYSTALS DOPED WITHEr3+ANDTm3+AS PROMISING MATERIALS FOR VUV-EXCITED PHOSPHORS

Author

Listed:
  • V. N. MAKHOV

    (Lebedev Physical Institute, Moscow 119991, Russia)

  • N. M. KHAIDUKOV

    (Kurnakov Institute of General and Inorganic Chemistry, Moscow 117907, Russia)

  • M. KIRM

    (II. Institut fur Experimentalphysik der Universitat Hamburg, Hamburg 22761, Germany)

  • G. ZIMMERER

    (II. Institut fur Experimentalphysik der Universitat Hamburg, Hamburg 22761, Germany)

  • S. K. LAM

    (Physics Department, Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China)

  • D. LO

    (Physics Department, Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China)

  • N. V. SUETIN

    (Nuclear Physics Institute, Moscow State University, Moscow 119899, Russia)

Abstract

The spectroscopic properties ofLiKGdF5crystals doped withEr3+orTm3+and codoped withDy3+,Tb3+orSm3+, and ofLiKYF5crystals doped withEr3+orTm3+and codoped withDy3+have been studied under excitation by vacuum ultraviolet (VUV) radiation. It has been found that inLiKGdF5crystals doped withEr3+orTm3+the VUV energy absorbed by4f–5dtransitions in theEr3+or theTm3+ion is nearly completely converted into the UV/visible emission. At least in theLiKGdF5:Er3+crystal some part of such a conversion is due to the energy transfer from the5dstate of theEr3+ion to the neighboringGd3+ion as a result of cross-relaxation giving rise to the emission of two UV/visible photons instead of one VUV quantum.LiKGdF5crystals doped withEr3+and codoped withDy3+,Tb3+orSm3+can be considered as promising materials for phosphors excited by VUV radiation from noble gas discharge.

Suggested Citation

  • V. N. Makhov & N. M. Khaidukov & M. Kirm & G. Zimmerer & S. K. Lam & D. Lo & N. V. Suetin, 2002. "LUMINESCENCE PROPERTIES OFLiKGdF5CRYSTALS DOPED WITHEr3+ANDTm3+AS PROMISING MATERIALS FOR VUV-EXCITED PHOSPHORS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(01), pages 271-276.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:01:n:s0218625x0200218x
    DOI: 10.1142/S0218625X0200218X
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    Keywords

    ; 78.60; 78.55; 78.40; 78.47; 71.20E;
    All these keywords.

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