Structural and optical characterization of ZrO2 and Y2O3-ZrO2 nanopowders

Nadiia Korsunska, Anton Zhuk, Vasyl Papusha, Oleksandr Kolomys, Yuliya Polishchuk, Yurii Bacherikov, Viktor Strelchuk, Vasyl Kladko, Tetyana Konstantinova, Tetyana Kryshtab, Larysa Khomenkova

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations

Abstract

Structural and optical properties of pure and Y-doped ZrO 2 nanopowders with different Y content sintered by co-precipitation of Zr and Y nitrates were investigated. It was observed that the increase of Y content stimulates the transformation of crystalline phase from monoclinic through tetragonal to cubic while the increase of calcinations time leads to the increase of ZrO 2 grain sizes. Generally, room temperature photo- and cathodoluminescence spectra showed several bands in blue–orange range. The increase of powder grains results in the enhancement of 2.81-eV photoluminescence caused probably by volume centers. Besides blue– orange emission, additional “red” cathodoluminescence band was observed. Its intensity exceeds essentially the magnitude of other components and increases with cooling. This “red” band was found to be complex and caused by intradefect transition. The excitation mechanism of this band is discussed.

Original languageEnglish
Title of host publicationMaterials Characterization
PublisherSpringer International Publishing
Pages59-67
Number of pages9
ISBN (Electronic)9783319152042
ISBN (Print)9783319152035
DOIs
StatePublished - 1 Jan 2015

Keywords

  • Luminescence
  • Optical characterization
  • Raman scattering
  • Structural
  • Tem
  • Y-doped zro 2

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