Optical Properties of (ZrO2)1 –x(Y2O3)х (х = 0–0.037) Crystals Grown by Directional Crystallization of the Melt

T. V. Perevalov, V. N. Kruchinin, S. V. Rykhlitskii, V. A. Gritsenko, A. P. Eliseev, E. E. Lomonova

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

Abstract: The luminescent and optical properties of materials based on zirconium(IV) oxide grown by crystallization of ZrO2 melts with 0, 2.0, 2.5, 2.8, and 3.7 mol % of Y2O3 are studied. Using Raman spectroscopy, it is found that this material with the Y2O3 concentration below 2 mol % is mainly a monoclinic ZrO2 phase. The photoluminescence spectra of these crystals contain a blue–green band peaking at an energy of 2.4 eV. This fact in combination with the specific features of the refractive index and absorption coefficient dispersions indicates the presence of high concentrations of oxygen vacancies and polyvacancies in the samples. At higher concentrations of Y2O3 in the mixture, the tetragonal ZrO2 modification becomes dominant in the materials under study and the blue–green luminescence intensity decreases. The experimental optical spectra are analyzed in comparison with the ab initio calculated spectra for ideal ZrO2 crystals in the cubic, tetragonal, and monoclinic phases.

Язык оригиналаанглийский
Страницы (с-по)1963-1969
Число страниц7
ЖурналOptics and Spectroscopy
Том128
Номер выпуска12
DOI
СостояниеОпубликовано - дек 2020

Предметные области OECD FOS+WOS

  • 2.05 ТЕХНОЛОГИЯ МАТЕРИАЛОВ
  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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