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Luminescence of Isoelectronic Mn4+ and Cr3+ Ions in Magnesium Orthotitanate

  • R. Dittmann
  • D. Hahn
  • J. Stade
Conference paper

Abstract

Powder samples of Mg2TiO4:Cr3+ and Mg2TiO4:Mn4+ with activator concentrations from 0.01 to 1.5% have heen prepared hy annealing of MgO/TiO2-mixtures. Both phosphors behave similarly and show very sharp emission lines. The most substantial of these lines is not generated by single ions but by so-called N-centers. The emission spectra vary with annealing temperature as is found both in powder and single crystal samples, thus showing that the N-centers might be activator ions associated with lattice defects.

Keywords

Activator Concentration Excitation Spectrum Selection Rule Lattice Defect Chromium Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • R. Dittmann
    • 1
  • D. Hahn
    • 1
  • J. Stade
    • 1
  1. 1.Physikalisch-Technische BundesanstaltBraunschweig and BerlinGermany

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