Optical Transparency and Local Electronic Structure of Yb-Doped Y2O3 Ceramics with Tetravalent Additives

The results of optical transmission and X-ray core-level spectra measurements of Yb:Y2O3 ceramics with different tetravalent sintering additives (ZrO2, CeO2 and HfO2) fabricated from na...

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Main Authors:	Ivan S. Zhidkov, Andrey I. Kukharenko, Roman N. Maksimov, Larisa D. Finkelstein, Seif O. Cholakh, Vladimir V. Osipov, Ernst Z. Kurmaev
Format:	Article
Language:	English
Published:	MDPI AG 2019-02-01
Series:	Symmetry
Subjects:	yttrium oxide ceramic electronic structure X-ray photoelectron spectra (XPS) transmission annealing
Online Access:	https://www.mdpi.com/2073-8994/11/2/243

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spelling	doaj-d725c2dffca04dfd86a36f74a7c156242020-11-25T00:27:25ZengMDPI AGSymmetry2073-89942019-02-0111224310.3390/sym11020243sym11020243Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent AdditivesIvan S. Zhidkov0Andrey I. Kukharenko1Roman N. Maksimov2Larisa D. Finkelstein3Seif O. Cholakh4Vladimir V. Osipov5Ernst Z. Kurmaev6Institute of Physics and Technology, Ural Federal University, Mira Str. 19, 620002 Yekaterinburg, RussiaInstitute of Physics and Technology, Ural Federal University, Mira Str. 19, 620002 Yekaterinburg, RussiaInstitute of Electrophysics, Ural Branch of Russian Academy of Sciences, Amundsen Str. 106, 620016 Yekaterinburg, RussiaM.N. Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Sciences, S. Kovalevskoi Str. 18, 620108 Yekaterinburg, RussiaInstitute of Physics and Technology, Ural Federal University, Mira Str. 19, 620002 Yekaterinburg, RussiaInstitute of Electrophysics, Ural Branch of Russian Academy of Sciences, Amundsen Str. 106, 620016 Yekaterinburg, RussiaInstitute of Physics and Technology, Ural Federal University, Mira Str. 19, 620002 Yekaterinburg, RussiaThe results of optical transmission and X-ray core-level spectra measurements of Yb:Y<sub>2</sub>O<sub>3</sub> ceramics with different tetravalent sintering additives (ZrO<sub>2</sub>, CeO<sub>2</sub> and HfO<sub>2</sub>) fabricated from nanopowders (produced by the laser ablation method) and then annealed at 1400 ℃ in air for 2 h are presented. It is found that the transmission values for ZrO<sub>2</sub>- and HfO<sub>2</sub>-doped ceramics at the lasing wavelengths are higher than those of CeO<sub>2</sub>-doped samples. The X-ray photoelectron spectra (XPS) O 1s spectra show that the relative intensity of oxygen defect peak detected for 3Yb:Y<sub>2</sub>O<sub>3</sub> + 5CeO<sub>2</sub> ceramics decreases substantially and consistently compared to that of 5Yb:Y<sub>2</sub>O<sub>3</sub> + 5HfO<sub>2</sub> and 3Yb:Y<sub>2</sub>O<sub>3</sub> + 5ZrO<sub>2</sub> samples. This can be attributed to a more complete filling of oxygen vacancies due to annealing-induced oxygen diffusion into the highly defective sintered ceramics. The measurements of XPS Ce 3d spectra showed that the insufficiently complete filling of the oxygen vacancies in the 3Yb:Y<sub>2</sub>O<sub>3</sub> + 5CeO<sub>2</sub> compound is due to the appreciable presence of trivalent cerium ions.https://www.mdpi.com/2073-8994/11/2/243yttrium oxideceramicelectronic structureX-ray photoelectron spectra (XPS)transmissionannealing
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Ivan S. Zhidkov Andrey I. Kukharenko Roman N. Maksimov Larisa D. Finkelstein Seif O. Cholakh Vladimir V. Osipov Ernst Z. Kurmaev
spellingShingle	Ivan S. Zhidkov Andrey I. Kukharenko Roman N. Maksimov Larisa D. Finkelstein Seif O. Cholakh Vladimir V. Osipov Ernst Z. Kurmaev Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives Symmetry yttrium oxide ceramic electronic structure X-ray photoelectron spectra (XPS) transmission annealing
author_facet	Ivan S. Zhidkov Andrey I. Kukharenko Roman N. Maksimov Larisa D. Finkelstein Seif O. Cholakh Vladimir V. Osipov Ernst Z. Kurmaev
author_sort	Ivan S. Zhidkov
title	Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives
title_short	Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives
title_full	Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives
title_fullStr	Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives
title_full_unstemmed	Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives
title_sort	optical transparency and local electronic structure of yb-doped y<sub>2</sub>o<sub>3</sub> ceramics with tetravalent additives
publisher	MDPI AG
series	Symmetry
issn	2073-8994
publishDate	2019-02-01
description	The results of optical transmission and X-ray core-level spectra measurements of Yb:Y<sub>2</sub>O<sub>3</sub> ceramics with different tetravalent sintering additives (ZrO<sub>2</sub>, CeO<sub>2</sub> and HfO<sub>2</sub>) fabricated from nanopowders (produced by the laser ablation method) and then annealed at 1400 ℃ in air for 2 h are presented. It is found that the transmission values for ZrO<sub>2</sub>- and HfO<sub>2</sub>-doped ceramics at the lasing wavelengths are higher than those of CeO<sub>2</sub>-doped samples. The X-ray photoelectron spectra (XPS) O 1s spectra show that the relative intensity of oxygen defect peak detected for 3Yb:Y<sub>2</sub>O<sub>3</sub> + 5CeO<sub>2</sub> ceramics decreases substantially and consistently compared to that of 5Yb:Y<sub>2</sub>O<sub>3</sub> + 5HfO<sub>2</sub> and 3Yb:Y<sub>2</sub>O<sub>3</sub> + 5ZrO<sub>2</sub> samples. This can be attributed to a more complete filling of oxygen vacancies due to annealing-induced oxygen diffusion into the highly defective sintered ceramics. The measurements of XPS Ce 3d spectra showed that the insufficiently complete filling of the oxygen vacancies in the 3Yb:Y<sub>2</sub>O<sub>3</sub> + 5CeO<sub>2</sub> compound is due to the appreciable presence of trivalent cerium ions.
topic	yttrium oxide ceramic electronic structure X-ray photoelectron spectra (XPS) transmission annealing
url	https://www.mdpi.com/2073-8994/11/2/243
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Optical Transparency and Local Electronic Structure of Yb-Doped Y<sub>2</sub>O<sub>3</sub> Ceramics with Tetravalent Additives

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