New Methods in the Technology of Electroluminescent Phosphors

  • Sychov, M.M. (St. Petersburg State Institute of Technology) ;
  • Bahmet'ev, V.V. (St. Petersburg State Institute of Technology) ;
  • Khavanova, L.V. (St. Petersburg State Institute of Technology) ;
  • Kuznetsov, A.I. (St. Petersburg State Institute of Technology) ;
  • Smimov, A. (State University of Informatics and Radioelectronics) ;
  • Vasil'eva, I.V. (Technology Center RADIANT) ;
  • Mjakin, S.V. (Technology Center RADIANT) ;
  • Nakanishi, Y. (Research Institute of Electronics, Shizuoka University)
  • Published : 2003.07.09

Abstract

Controlling synthesis conditions of ZnS:Cu,Al and ZnS:Cu electroluminescent phosphors we optimized particle size, color properties and efficiency. Surface properties were studied by new method and showed correlation with luminescence as shown by the analysis of EL spectra with Fok-Alentsev method. Luminance and maintenance improvement was achieved by the electron-beam annealing due to additional decomposition of $ZnS-Cu_{2}S$ solid solution and formation of centers of blue luminescence.

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