SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study

SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study

We report the results of the comprehensive study of the structural, magnetic and optical properties of SrTiO₃ perovskite doped with Eu³⁺ ions. Polycrystalline powders were obtained by sol-gel process including high-temperature annealing at 1300 °C. The structural analysis showed that material is com...

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Бібліографічні деталі
Дата:2016
Автори: Pusenkova, A.S., Marchylo, О.N., Zavyalova, L.V., Golovina, I.S., Svechnikov, S.V., Snopok, B.А.
Формат: Стаття
Мова:English
Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2016
Назва видання:Semiconductor Physics Quantum Electronics & Optoelectronics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/121654
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study / A.S. Pusenkova, О.N. Marchylo, L.V. Zavyalova, I.S. Golovina, S.V. Svechnikov, B.А. Snopok // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2016. — Т. 19, № 4. — С. 343-351. — Бібліогр.: 45 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1216542017-06-16T03:02:34Z SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study Pusenkova, A.S. Marchylo, О.N. Zavyalova, L.V. Golovina, I.S. Svechnikov, S.V. Snopok, B.А. We report the results of the comprehensive study of the structural, magnetic and optical properties of SrTiO₃ perovskite doped with Eu³⁺ ions. Polycrystalline powders were obtained by sol-gel process including high-temperature annealing at 1300 °C. The structural analysis showed that material is composed of several phases with dominant SrТiO₃ and onsiderable quantity of titanium dioxide (rutile, 10…20%). Both the amount of Eu and ratio of Eu:Sr in the final product are considerably smaller as compared to the original solutions for synthesis. The elemental analysis reveals europium only in the phase of EuSrTi₂O₇ compound for equimolar ratio of Eu and Sr during the synthesis. The EPR analysis reports deficiency of Eu²⁺ in the samples under investigations. SrTiO₃:Eu³⁺ powders demonstrate weak photoluminescence, which intensity grows up with increasing the concentration of Eu and reaches its maximum at c.a. 8 mol.% of Eu in the original solutions. Addition of Al increases the intensity of photoluminescence (c.a. 2.2 for 10 mol.%). Emission spectra are typical for Eu³⁺ occupied sites with high symmetric environment (dominant ⁵D₀→⁷F₁ transition) with relatively low distortion (both ⁵D₀→⁷F₂ and ⁵D₀→⁷F₄ as well present, but with a lower intensity) of coordination polyhedron. Low solid-solubility limit of Eu³⁺ in perovskite matrix (less than 1 mol.%), peculiarities of optical spectra, effect of Al, production/annealing temperature dependence etc. have suggested that structural effects are dominating in functional, in particular, optical properties of SrTiO₃:Eu³⁺ phosphors. 2016 Article SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study / A.S. Pusenkova, О.N. Marchylo, L.V. Zavyalova, I.S. Golovina, S.V. Svechnikov, B.А. Snopok // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2016. — Т. 19, № 4. — С. 343-351. — Бібліогр.: 45 назв. — англ. 1560-8034 DOI: 10.15407/spqeo19.04.343 PACS 61.05.cp, 61.72.Hh, 78.55.Hx http://dspace.nbuv.gov.ua/handle/123456789/121654 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description We report the results of the comprehensive study of the structural, magnetic and optical properties of SrTiO₃ perovskite doped with Eu³⁺ ions. Polycrystalline powders were obtained by sol-gel process including high-temperature annealing at 1300 °C. The structural analysis showed that material is composed of several phases with dominant SrТiO₃ and onsiderable quantity of titanium dioxide (rutile, 10…20%). Both the amount of Eu and ratio of Eu:Sr in the final product are considerably smaller as compared to the original solutions for synthesis. The elemental analysis reveals europium only in the phase of EuSrTi₂O₇ compound for equimolar ratio of Eu and Sr during the synthesis. The EPR analysis reports deficiency of Eu²⁺ in the samples under investigations. SrTiO₃:Eu³⁺ powders demonstrate weak photoluminescence, which intensity grows up with increasing the concentration of Eu and reaches its maximum at c.a. 8 mol.% of Eu in the original solutions. Addition of Al increases the intensity of photoluminescence (c.a. 2.2 for 10 mol.%). Emission spectra are typical for Eu³⁺ occupied sites with high symmetric environment (dominant ⁵D₀→⁷F₁ transition) with relatively low distortion (both ⁵D₀→⁷F₂ and ⁵D₀→⁷F₄ as well present, but with a lower intensity) of coordination polyhedron. Low solid-solubility limit of Eu³⁺ in perovskite matrix (less than 1 mol.%), peculiarities of optical spectra, effect of Al, production/annealing temperature dependence etc. have suggested that structural effects are dominating in functional, in particular, optical properties of SrTiO₃:Eu³⁺ phosphors.
format Article
author Pusenkova, A.S.
Marchylo, О.N.
Zavyalova, L.V.
Golovina, I.S.
Svechnikov, S.V.
Snopok, B.А.
spellingShingle Pusenkova, A.S.
Marchylo, О.N.
Zavyalova, L.V.
Golovina, I.S.
Svechnikov, S.V.
Snopok, B.А.
SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study
Semiconductor Physics Quantum Electronics & Optoelectronics
author_facet Pusenkova, A.S.
Marchylo, О.N.
Zavyalova, L.V.
Golovina, I.S.
Svechnikov, S.V.
Snopok, B.А.
author_sort Pusenkova, A.S.
title SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study
title_short SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study
title_full SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study
title_fullStr SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study
title_full_unstemmed SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study
title_sort srtio₃:eu³⁺ phosphors prepared by sol-gel synthesis: structural characterization, magnetic properties and luminescence spectroscopy study
publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
publishDate 2016
url http://dspace.nbuv.gov.ua/handle/123456789/121654
citation_txt SrTiO₃:Eu³⁺ phosphors prepared by sol-gel synthesis: Structural characterization, magnetic properties and luminescence spectroscopy study / A.S. Pusenkova, О.N. Marchylo, L.V. Zavyalova, I.S. Golovina, S.V. Svechnikov, B.А. Snopok // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2016. — Т. 19, № 4. — С. 343-351. — Бібліогр.: 45 назв. — англ.
series Semiconductor Physics Quantum Electronics & Optoelectronics
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AT svechnikovsv srtio3eu3phosphorspreparedbysolgelsynthesisstructuralcharacterizationmagneticpropertiesandluminescencespectroscopystudy
AT snopokba srtio3eu3phosphorspreparedbysolgelsynthesisstructuralcharacterizationmagneticpropertiesandluminescencespectroscopystudy
first_indexed 2023-10-18T20:39:59Z
last_indexed 2023-10-18T20:39:59Z
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