STRUCTURE, MORPHOLOGY AND LUMINESCENCE PROPERTIES OF Pr-DOPED
NANOCRYSTLLINE ZrO[2] OBTAINED BY HYDROTHERMAL METHOD, A. Opalinska ,
D.Hreniak* , W. Lojkowski , W. Strek*, A. Presz
High Pressure Research Center , Polish Academy of Sciences,
Sokolowska 29 / 37, 01-142 Warsaw, Poland
*Institute of Low Temperature and Structural Research, Polish Academy
of Sciences , Okolna 2, 50-422 Wroclaw, Poland

The synthesis, physical characterization and photoluminescence of
nanocrystalline ZrO[2]:Pr3+ powders are presented. The ZrO[2] powders
with crystallites size in range 5-12 nm were prepared by hydrothermal
technique. A high pressure microwave reactor was used to produce of
the system zirconia-preseodymium (Pr content 0.05-2%mol). The emission
spectra and luminescence decays were recorded. The size and
concentration of Pr3+-ions effects on the quenching of the 3P[0]
emission were studied.

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