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<p>The drying conditions (in vacuum or in the air) of nanoparticles consisting of Yb:Yb<sub>2</sub>O<sub>3</sub> + 5 mole% ZrO<sub>2</sub> obtained by sedimentation in ethanol have been found to affect the optical quality of the resultant ceramic samples. The studies were carried out using absorption spectroscopy in both the 200–1100 nm and near-infrared regions as well as Raman scattering. Regardless of the drying process for these nanopowders, carbonate species as well as fragments of ethanol and water are formed in the resultant ceramics, leading to complex crystalline defects containing divalent ytterbium ions. These defects lead to a loss of transparency of the ceramics and photoluminescence of trivalent ytterbium excited by laser radiation with wavelength 785 nm. The most significant negative effect of these defects was observed in the ceramics made of nanopowders dried in vacuum.</p>

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Effect of Decanting Nanopowders of Yb:Y2O3 + 5 mole% ZrO2 in Ethanol on the Optical Quality of the Ceramics Synthesized from Them

  • 期刊论文

  • 发表日期：

    2025年7月5日

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  • V. I. Solomonov,
  • V. V. Osipov,
  • V. A. Shitov,
  • R. N. Maksimov,
  • A. V. Spirina,
  • A. S. Makarova,
  • A. N. Orlov,
  • O. N. Tchaikovskaya,
  • A. A. Shchukina,
  • M. S. Snegerev,
  • Yu. V. Kistenev

摘要

The drying conditions (in vacuum or in the air) of nanoparticles consisting of Yb:Yb2O3 + 5 mole% ZrO2 obtained by sedimentation in ethanol have been found to affect the optical quality of the resultant ceramic samples. The studies were carried out using absorption spectroscopy in both the 200–1100 nm and near-infrared regions as well as Raman scattering. Regardless of the drying process for these nanopowders, carbonate species as well as fragments of ethanol and water are formed in the resultant ceramics, leading to complex crystalline defects containing divalent ytterbium ions. These defects lead to a loss of transparency of the ceramics and photoluminescence of trivalent ytterbium excited by laser radiation with wavelength 785 nm. The most significant negative effect of these defects was observed in the ceramics made of nanopowders dried in vacuum.