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The effect of annealing and ytterbium concentration on crystal structure and photoluminescence of YAlO:Yb nanopowders

Applied Nanoscience (Switzerland), ISSN: 2190-5517, Vol: 10, Issue: 8, Page: 2593-2599
2020
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Article Description

Ytterbium-doped nanocrystalline powders of yttrium aluminum garnet (YAG:Yb) with ytterbium content from 5 to 30 at.% have been prepared by the citrate sol–gel method. Phase composition, crystal structure and microstructure of the materials were studied by means of X-ray powder diffraction techniques using both laboratory and synchrotron radiation sources. The photoluminescence spectra and the photoluminescence decay kinetics of Yb ions at room temperature were performed as well. It was revealed that materials calcined at lower (1000 °C) temperature possess a small amount of Yb ions occupying the octahedral sites of Al ions, whereas the materials calcined at 1200 °C form the proper (YYb)AlO solid solution.

Bibliographic Details

I. I. Syvorotka; A. P. Luchechko; L. O. Vasylechko; Ya. A. Zhydachevskyy; D. Yu Sugak; N. V. Martynyuk; S. B. Ubizskii; A. Suchocki

Springer Science and Business Media LLC

Biochemistry, Genetics and Molecular Biology; Physics and Astronomy; Materials Science; Chemistry; Engineering

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