Highly Transparent Fluorotellurite Glass-Ceramics : Structural Investigations and Luminescence Properties
Crystallization from glass can lead to the stabilization of metastable crystalline phases, which offers an interesting way to unveil novel compounds and control the optical properties of resulting glass-ceramics. Here, we report on a crystallization study of the ZrF4-TeO2 glass system and show that under specific synthesis conditions, a previously unreported Te0.47Zr0.53OxFy zirconium oxyfluorotellurite antiglass phase can be selectively crystallized at the nanometric scale within the 65TeO2-35ZrF4 amorphous matrix. This leads to highly transparent glass-ceramics in both the visible and near-infrared ranges. Under longer heat treatment, the stable cubic ZrTe3O8 phase crystallizes in addition to the previous unreported antiglass phase. The structure, microstructure, and optical properties of 65TeO2-35ZrF4Tm3+-doped glass-ceramics, were investigated in detail by means of X-ray diffraction, scanning and transmission electron microscopies, and 19F, 91Zr, and 125Te NMR, Raman, and photoluminescence spectroscopies. The crystal chemistry study of several single crystals samples by X-ray diffraction evidence that the novel phase, derived from α-UO3 type, corresponds in terms of long-range ordering inside this basic hexagonal/trigonal disordered phase (antiglass) to a complex series of modulated microphases rather than a stoichiometric compound with various superstructures analogous to those observed in the UO3-U3O8 subsystem. These results highlight the peculiar disorder-order phenomenon occurring in tellurite materials.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:58 |
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| Enthalten in: |
Inorganic chemistry - 58(2019), 24 vom: 16. Dez., Seite 16387-16401 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Laval, Jean-Paul [VerfasserIn] |
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| Anmerkungen: |
Date Completed 17.12.2019 Date Revised 17.12.2019 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.inorgchem.9b01955 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM303922281 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Crystallization from glass can lead to the stabilization of metastable crystalline phases, which offers an interesting way to unveil novel compounds and control the optical properties of resulting glass-ceramics. Here, we report on a crystallization study of the ZrF4-TeO2 glass system and show that under specific synthesis conditions, a previously unreported Te0.47Zr0.53OxFy zirconium oxyfluorotellurite antiglass phase can be selectively crystallized at the nanometric scale within the 65TeO2-35ZrF4 amorphous matrix. This leads to highly transparent glass-ceramics in both the visible and near-infrared ranges. Under longer heat treatment, the stable cubic ZrTe3O8 phase crystallizes in addition to the previous unreported antiglass phase. The structure, microstructure, and optical properties of 65TeO2-35ZrF4Tm3+-doped glass-ceramics, were investigated in detail by means of X-ray diffraction, scanning and transmission electron microscopies, and 19F, 91Zr, and 125Te NMR, Raman, and photoluminescence spectroscopies. The crystal chemistry study of several single crystals samples by X-ray diffraction evidence that the novel phase, derived from α-UO3 type, corresponds in terms of long-range ordering inside this basic hexagonal/trigonal disordered phase (antiglass) to a complex series of modulated microphases rather than a stoichiometric compound with various superstructures analogous to those observed in the UO3-U3O8 subsystem. These results highlight the peculiar disorder-order phenomenon occurring in tellurite materials | ||
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| 700 | 1 | |a Couderc, Vincent |e verfasserin |4 aut | |
| 700 | 1 | |a Allix, Mathieu |e verfasserin |4 aut | |
| 700 | 1 | |a Genevois, Cécile |e verfasserin |4 aut | |
| 700 | 1 | |a Sarou-Kanian, Vincent |e verfasserin |4 aut | |
| 700 | 1 | |a Fayon, Franck |e verfasserin |4 aut | |
| 700 | 1 | |a Coulon, Pierre-Eugène |e verfasserin |4 aut | |
| 700 | 1 | |a Chenu, Sébastien |e verfasserin |4 aut | |
| 700 | 1 | |a Colas, Maggy |e verfasserin |4 aut | |
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| 700 | 1 | |a Thomas, Philippe |e verfasserin |4 aut | |
| 700 | 1 | |a Delaizir, Gaëlle |e verfasserin |4 aut | |
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