Effects of Tm3+ Additions on the Crystallization of LaF3 Nanocrystals in Oxyfluoride Glasses: Optical Characterization and Up‐Conversion
Identifieur interne : 000587 ( Main/Exploration ); précédent : 000586; suivant : 000588Effects of Tm3+ Additions on the Crystallization of LaF3 Nanocrystals in Oxyfluoride Glasses: Optical Characterization and Up‐Conversion
Auteurs : A. De Pablos-Martín [Espagne, Allemagne] ; D. Ristic [Italie] ; S. Bhattacharyya [Allemagne, Inde] ; Th. Höche [Allemagne] ; G. C. Mather [Espagne] ; M. O Ramírez [Espagne] ; S. Soria [Italie] ; M. Ferrari [Italie] ; G. C. Righini [Italie] ; L. E. Bausá [Espagne] ; A. Durán [Espagne] ; M. J. Pascual [Espagne]Source :
- Journal of the American Ceramic Society [ 0002-7820 ] ; 2013-02.
English descriptors
- KwdEn :
- Absorbance spectra, Acceleration voltage, Activation energy, Aluminosilicate glasses, Avrami exponent, Avrami parameter, Blue emission, Broad band, Chem, Chemical analysis, Chemical composition, Crystal growth, Crystal size, Crystal sizes, Crystal structure, Crystalline fraction, Crystalline laf3, Crystallization, Crystallization kinetics, Crystallization mechanism, Crystallization peak, Doped, Doped glass, Emission intensity, Emission spectra, Emissor level, Excitation, Further nuclei, Glass ceramics, Glass composition, Glass exhibits, Glass matrix, Glassy environments, Good agreement, Heat treatment, Heating rate, Heating rates, Higher intensity, Induction time, Inset, Ion, Ktab equations, Laf3, Laf3 crystallization, Laf3 crystallization february, Laf3 crystals, Laf3 nanocrystals, Laser, Laser beam, Main bands, Marseglia plot, Matrix, Nanocrystals, Neutron, Neutron patterns, Optical characterization, Optical properties, Optical transitions, Overall crystallization process, Ozawa plot, Parent glass, Particle size, Pascual, Phase separation, Phys, Present study, Raman, Raman spectra, Raman spectrum, Rare earth, Rietveld, Rietveld analysis, Room temperature, Rotation method, Rotation speeds, Same procedure, Scanning calorimetry, Show transmission electron micrographs, Site symmetry, Solid state chem, Space group, Spectroscopic properties, Spectroscopic study, Structural probe, Thermal vibration factors, Transparent glass ceramics, Treatment temperature, Undoped, Undoped analogue, Undoped glass, Undoped material, Uorine content, Viscosity points, Wang, Weak bands.
- Teeft :
- Absorbance spectra, Acceleration voltage, Activation energy, Aluminosilicate glasses, Avrami exponent, Avrami parameter, Blue emission, Broad band, Chem, Chemical analysis, Chemical composition, Crystal growth, Crystal size, Crystal sizes, Crystal structure, Crystalline fraction, Crystalline laf3, Crystallization, Crystallization kinetics, Crystallization mechanism, Crystallization peak, Doped, Doped glass, Emission intensity, Emission spectra, Emissor level, Excitation, Further nuclei, Glass ceramics, Glass composition, Glass exhibits, Glass matrix, Glassy environments, Good agreement, Heat treatment, Heating rate, Heating rates, Higher intensity, Induction time, Inset, Ion, Ktab equations, Laf3, Laf3 crystallization, Laf3 crystallization february, Laf3 crystals, Laf3 nanocrystals, Laser, Laser beam, Main bands, Marseglia plot, Matrix, Nanocrystals, Neutron, Neutron patterns, Optical characterization, Optical properties, Optical transitions, Overall crystallization process, Ozawa plot, Parent glass, Particle size, Pascual, Phase separation, Phys, Present study, Raman, Raman spectra, Raman spectrum, Rare earth, Rietveld, Rietveld analysis, Room temperature, Rotation method, Rotation speeds, Same procedure, Scanning calorimetry, Show transmission electron micrographs, Site symmetry, Solid state chem, Space group, Spectroscopic properties, Spectroscopic study, Structural probe, Thermal vibration factors, Transparent glass ceramics, Treatment temperature, Undoped, Undoped analogue, Undoped glass, Undoped material, Uorine content, Viscosity points, Wang, Weak bands.
Abstract
The influence of the addition of 1 mol% Tm2O3 on the nanocrystallization of LaF3 in a glass of composition 55SiO2–20Al2O3–15Na2O–10LaF3 (mol%) has been studied. Tm2O3 affects the phase separation in the glass and delays the onset of crystallization with respect to the undoped glass. Additionally, the maximum LaF3 crystal size is slightly greater than that in the undoped glass–ceramics. The microstructural and compositional changes in the glass matrix have been studied using several techniques, including viscosity, dilatometry, X‐ray and neutron diffraction (XRD, ND), quantitative Rietveld refinement, transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and Raman spectroscopy. Photoluminescence measurements indicate that the Tm3+ ions are distributed between the glassy matrix and LaF3 crystals. Eu2O3 has been used as structure probe and part of the Eu3+ ions are reduced to Eu2+ when incorporated in the LaF3 nano‐crystals. Up‐conversion spectra under IR‐excitation show a higher intensity of the blue emission in the Tm‐doped glass–ceramic compared with that in the glass.
Url:
DOI: 10.1111/jace.12120
Affiliations:
- Allemagne, Espagne, Inde, Italie
- Communauté de Madrid, District de Leipzig, Saxe (Land)
- Leipzig, Madrid
- Université autonome de Madrid
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Le document en format XML
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Nanocrystals in Oxyfluoride Glasses: Optical Characterization and Up‐Conversion</title>
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<term>Acceleration voltage</term>
<term>Activation energy</term>
<term>Aluminosilicate glasses</term>
<term>Avrami exponent</term>
<term>Avrami parameter</term>
<term>Blue emission</term>
<term>Broad band</term>
<term>Chem</term>
<term>Chemical analysis</term>
<term>Chemical composition</term>
<term>Crystal growth</term>
<term>Crystal size</term>
<term>Crystal sizes</term>
<term>Crystal structure</term>
<term>Crystalline fraction</term>
<term>Crystalline laf3</term>
<term>Crystallization</term>
<term>Crystallization kinetics</term>
<term>Crystallization mechanism</term>
<term>Crystallization peak</term>
<term>Doped</term>
<term>Doped glass</term>
<term>Emission intensity</term>
<term>Emission spectra</term>
<term>Emissor level</term>
<term>Excitation</term>
<term>Further nuclei</term>
<term>Glass ceramics</term>
<term>Glass composition</term>
<term>Glass exhibits</term>
<term>Glass matrix</term>
<term>Glassy environments</term>
<term>Good agreement</term>
<term>Heat treatment</term>
<term>Heating rate</term>
<term>Heating rates</term>
<term>Higher intensity</term>
<term>Induction time</term>
<term>Inset</term>
<term>Ion</term>
<term>Ktab equations</term>
<term>Laf3</term>
<term>Laf3 crystallization</term>
<term>Laf3 crystallization february</term>
<term>Laf3 crystals</term>
<term>Laf3 nanocrystals</term>
<term>Laser</term>
<term>Laser beam</term>
<term>Main bands</term>
<term>Marseglia plot</term>
<term>Matrix</term>
<term>Nanocrystals</term>
<term>Neutron</term>
<term>Neutron patterns</term>
<term>Optical characterization</term>
<term>Optical properties</term>
<term>Optical transitions</term>
<term>Overall crystallization process</term>
<term>Ozawa plot</term>
<term>Parent glass</term>
<term>Particle size</term>
<term>Pascual</term>
<term>Phase separation</term>
<term>Phys</term>
<term>Present study</term>
<term>Raman</term>
<term>Raman spectra</term>
<term>Raman spectrum</term>
<term>Rare earth</term>
<term>Rietveld</term>
<term>Rietveld analysis</term>
<term>Room temperature</term>
<term>Rotation method</term>
<term>Rotation speeds</term>
<term>Same procedure</term>
<term>Scanning calorimetry</term>
<term>Show transmission electron micrographs</term>
<term>Site symmetry</term>
<term>Solid state chem</term>
<term>Space group</term>
<term>Spectroscopic properties</term>
<term>Spectroscopic study</term>
<term>Structural probe</term>
<term>Thermal vibration factors</term>
<term>Transparent glass ceramics</term>
<term>Treatment temperature</term>
<term>Undoped</term>
<term>Undoped analogue</term>
<term>Undoped glass</term>
<term>Undoped material</term>
<term>Uorine content</term>
<term>Viscosity points</term>
<term>Wang</term>
<term>Weak bands</term>
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<term>Acceleration voltage</term>
<term>Activation energy</term>
<term>Aluminosilicate glasses</term>
<term>Avrami exponent</term>
<term>Avrami parameter</term>
<term>Blue emission</term>
<term>Broad band</term>
<term>Chem</term>
<term>Chemical analysis</term>
<term>Chemical composition</term>
<term>Crystal growth</term>
<term>Crystal size</term>
<term>Crystal sizes</term>
<term>Crystal structure</term>
<term>Crystalline fraction</term>
<term>Crystalline laf3</term>
<term>Crystallization</term>
<term>Crystallization kinetics</term>
<term>Crystallization mechanism</term>
<term>Crystallization peak</term>
<term>Doped</term>
<term>Doped glass</term>
<term>Emission intensity</term>
<term>Emission spectra</term>
<term>Emissor level</term>
<term>Excitation</term>
<term>Further nuclei</term>
<term>Glass ceramics</term>
<term>Glass composition</term>
<term>Glass exhibits</term>
<term>Glass matrix</term>
<term>Glassy environments</term>
<term>Good agreement</term>
<term>Heat treatment</term>
<term>Heating rate</term>
<term>Heating rates</term>
<term>Higher intensity</term>
<term>Induction time</term>
<term>Inset</term>
<term>Ion</term>
<term>Ktab equations</term>
<term>Laf3</term>
<term>Laf3 crystallization</term>
<term>Laf3 crystallization february</term>
<term>Laf3 crystals</term>
<term>Laf3 nanocrystals</term>
<term>Laser</term>
<term>Laser beam</term>
<term>Main bands</term>
<term>Marseglia plot</term>
<term>Matrix</term>
<term>Nanocrystals</term>
<term>Neutron</term>
<term>Neutron patterns</term>
<term>Optical characterization</term>
<term>Optical properties</term>
<term>Optical transitions</term>
<term>Overall crystallization process</term>
<term>Ozawa plot</term>
<term>Parent glass</term>
<term>Particle size</term>
<term>Pascual</term>
<term>Phase separation</term>
<term>Phys</term>
<term>Present study</term>
<term>Raman</term>
<term>Raman spectra</term>
<term>Raman spectrum</term>
<term>Rare earth</term>
<term>Rietveld</term>
<term>Rietveld analysis</term>
<term>Room temperature</term>
<term>Rotation method</term>
<term>Rotation speeds</term>
<term>Same procedure</term>
<term>Scanning calorimetry</term>
<term>Show transmission electron micrographs</term>
<term>Site symmetry</term>
<term>Solid state chem</term>
<term>Space group</term>
<term>Spectroscopic properties</term>
<term>Spectroscopic study</term>
<term>Structural probe</term>
<term>Thermal vibration factors</term>
<term>Transparent glass ceramics</term>
<term>Treatment temperature</term>
<term>Undoped</term>
<term>Undoped analogue</term>
<term>Undoped glass</term>
<term>Undoped material</term>
<term>Uorine content</term>
<term>Viscosity points</term>
<term>Wang</term>
<term>Weak bands</term>
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<front><div type="abstract">The influence of the addition of 1 mol% Tm2O3 on the nanocrystallization of LaF3 in a glass of composition 55SiO2–20Al2O3–15Na2O–10LaF3 (mol%) has been studied. Tm2O3 affects the phase separation in the glass and delays the onset of crystallization with respect to the undoped glass. Additionally, the maximum LaF3 crystal size is slightly greater than that in the undoped glass–ceramics. The microstructural and compositional changes in the glass matrix have been studied using several techniques, including viscosity, dilatometry, X‐ray and neutron diffraction (XRD, ND), quantitative Rietveld refinement, transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and Raman spectroscopy. Photoluminescence measurements indicate that the Tm3+ ions are distributed between the glassy matrix and LaF3 crystals. Eu2O3 has been used as structure probe and part of the Eu3+ ions are reduced to Eu2+ when incorporated in the LaF3 nano‐crystals. Up‐conversion spectra under IR‐excitation show a higher intensity of the blue emission in the Tm‐doped glass–ceramic compared with that in the glass.</div>
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<li>District de Leipzig</li>
<li>Saxe (Land)</li>
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<li>Madrid</li>
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<orgName><li>Université autonome de Madrid</li>
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<name sortKey="Duran, A" sort="Duran, A" uniqKey="Duran A" first="A." last="Durán">A. Durán</name>
<name sortKey="Mather, G C" sort="Mather, G C" uniqKey="Mather G" first="G. C." last="Mather">G. C. Mather</name>
<name sortKey="O Ramirez, M" sort="O Ramirez, M" uniqKey="O Ramirez M" first="M." last="O Ramírez">M. O Ramírez</name>
<name sortKey="Pascual, M J" sort="Pascual, M J" uniqKey="Pascual M" first="M. J." last="Pascual">M. J. Pascual</name>
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<country name="Allemagne"><noRegion><name sortKey="De Pablos Artin, A" sort="De Pablos Artin, A" uniqKey="De Pablos Artin A" first="A." last="De Pablos-Martín">A. De Pablos-Martín</name>
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<name sortKey="Hoche, Th" sort="Hoche, Th" uniqKey="Hoche T" first="Th." last="Höche">Th. Höche</name>
<name sortKey="Hoche, Th" sort="Hoche, Th" uniqKey="Hoche T" first="Th." last="Höche">Th. Höche</name>
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<country name="Italie"><noRegion><name sortKey="Ristic, D" sort="Ristic, D" uniqKey="Ristic D" first="D." last="Ristic">D. Ristic</name>
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<name sortKey="Soria, S" sort="Soria, S" uniqKey="Soria S" first="S." last="Soria">S. Soria</name>
</country>
<country name="Inde"><noRegion><name sortKey="Bhattacharyya, S" sort="Bhattacharyya, S" uniqKey="Bhattacharyya S" first="S." last="Bhattacharyya">S. Bhattacharyya</name>
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