Applied Physics A

, Volume 59, Issue 6, pp 569–574

Photoluminescence decay and time-resolved spectroscopy of cubic yttria-stabilized zirconia

  • S. E. Paje
  • J. Llopis
Solids And Materials

DOI: 10.1007/BF00331913

Cite this article as:
Paje, S.E. & Llopis, J. Appl. Phys. A (1994) 59: 569. doi:10.1007/BF00331913

Abstract

The time-resolved spectra and luminescence decays of cubic yttria-stabilized zirconia single crystals were investigated in the 100–300 K temperature range. At each temperature the time-resolved spectra are dominated by a yellow-orange broad band with a shoulder in the green region, and their shapes appear similar to those displayed in fluorescence. In addition, the shapes remain almost independent of the delay times over the range between 0.04 and 0.4 ms after excitation. The luminescence decays can be satisfactorily described by the superposition of two exponential functions, as well as by two expressions commonly given for decays related to disorder. In the three cases, the temperature dependences of the time constants and the other parameters derived from these expressions are analyzed. The time constants can be accounted for by assuming a radiative decay from two metastable levels with a typical separation of 0.057±0.005 eV. Some correlations between the parameters from the luminescence-decay formulae are given. The results are in good agreement with luminescence due to radiative recombinations at donor F-type levels in which complexes formed by oxygen vacancies in a disordered sublattice are involved.

PACS

78.55.Hx71.55.Ht

Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • S. E. Paje
    • 1
  • J. Llopis
    • 1
  1. 1.Departmento de Física de Materiales, Facultad de Ciencias FísicasUniversidad ComplutenseMadridSpain