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Number of results

Journal

2014 | 12 | 6 | 415-420

Article title

Afterglow and thermoluminescence of ZrO2 nanopowders

Content

Title variants

Languages of publication

EN

Abstracts

EN
A careful study of the phosphorescence afterglow and the thermoluminescence (TL) of sol-gel-prepared m-ZrO2 nanocrystalline powders in an extended temperature range −100 to 300 °C was carried out. Wavelength-resolved TL proved the existence of a single active luminescence centre in this temperature range. A TL method based on various heating rates was used to derive more reliable trap depths of 0.75, 0.95, 1.25, 1.46 and 1.66 eV whereas deconvolution methods provided somewhat lower values. The most intense room-temperature afterglows (that were easily observable beyond 1000 s) were obtained from samples annealed at 1250 and 1500 °C, and were attributed mainly to depopulation of the 1.25 eV traps.

Publisher

Journal

Year

Volume

12

Issue

6

Pages

415-420

Physical description

Dates

published
1 - 6 - 2014
online
31 - 5 - 2014

Contributors

author
  • Institute of Physics, University of Tartu, Riia str 142, 51014, Tartu, Estonia
author
  • Institute of Physics, University of Tartu, Riia str 142, 51014, Tartu, Estonia
author
  • Institute of Physics, University of Tartu, Riia str 142, 51014, Tartu, Estonia
author
  • Institute of Physics, University of Tartu, Riia str 142, 51014, Tartu, Estonia
author
  • Institute of Physics, University of Tartu, Riia str 142, 51014, Tartu, Estonia

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-014-0456-9
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