Probing structure of ytterbium stabilized Pr-doped zirconia obtained by microwave hydrothermal method

Nanoparticles of ZrO2:Pr stabilized with ytterbium in the range 0.5%mol.-20%mol. were synthesized. Crystallite sizes depended on Yb concentration. Red luminescence resulting from 1D2→3H4 transition of Pr3+ is present in all the samples. Additionally in the samples calcined at 1200 °C blue-green lumi...

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Bibliographic Details
Published inCeramics international Vol. 47; no. 19; pp. 26748 - 26757
Main Authors Rosowska, J., Kaszewski, J., Witkowski, B., Wachnicki, Ł., Godlewski, M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.10.2021
Subjects
Microwave hydrothermal method
Photoluminescence
ZrO2 nanoparticles
ZrO2:Pr
Microwave hydrothermal method
Yb
ZrO2:Pr
ZrO2 nanoparticles
Photoluminescence
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Summary:Nanoparticles of ZrO2:Pr stabilized with ytterbium in the range 0.5%mol.-20%mol. were synthesized. Crystallite sizes depended on Yb concentration. Red luminescence resulting from 1D2→3H4 transition of Pr3+ is present in all the samples. Additionally in the samples calcined at 1200 °C blue-green luminescence from 3P0 level of Pr3+ was found. This emission was more intense than red one. Intensity of the 3P0→3H4 luminescence depended on ytterbium content and was found to be the highest at 20% mol. Yb. Luminescence study had shown, that ytterbium introduced additional lattice defects. Some quantity of praseodymium activator ions were found to be present at +4 state and changed its valence to +3 as ytterbium content had risen.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2021.06.083