In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis

In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis

Transparent oxyfluoride glass-ceramics (GCs) with embedded β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub> crystals doped with Er<sup>3+</sup> ions were fabricated by a melt-quenching method with subsequent...

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Autores principales: Rajesh Dagupati, Robert Klement, Ramaraghavulu Rajavaram, José J. Velázquez, Dušan Galusek
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
glass
glass-ceramic
optical thermometry
up-conversion
down-conversion
Organic chemistry
QD241-441
Acceso en línea:https://doaj.org/article/c1273b26ce4d4e95a557b1b9554353d7
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spelling oai:doaj.org-article:c1273b26ce4d4e95a557b1b9554353d72021-11-25T18:28:15ZIn Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis10.3390/molecules262269011420-3049https://doaj.org/article/c1273b26ce4d4e95a557b1b9554353d72021-11-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/22/6901https://doaj.org/toc/1420-3049Transparent oxyfluoride glass-ceramics (GCs) with embedded β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub> crystals doped with Er<sup>3+</sup> ions were fabricated by a melt-quenching method with subsequent heat-treatment. The structural characterizations and spectroscopic techniques were performed to verify the precipitation of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub> crystals and partition of the Er<sup>3+</sup> dopant into the crystals. Bright green up-conversion (UC) emission was achieved in Er<sup>3+</sup>-doped glass-ceramic (Er-GC). Furthermore, the temperature-dependent visible UC behavior based on thermally coupled energy levels (TCLs) and non-thermally coupled energy levels (NTCLs) was also examined in the temperature range 298 k to 823 K with maximum relative sensitivity (<i>S<sub>r</sub></i>) of 1.1% K<sup>−1</sup> at 298 K for TCLs in Er-G and Er-GC samples.Rajesh DagupatiRobert KlementRamaraghavulu RajavaramJosé J. VelázquezDušan GalusekMDPI AGarticleglassglass-ceramicoptical thermometryup-conversiondown-conversionOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6901, p 6901 (2021)
institution DOAJ
collection DOAJ
language EN
topic glass
glass-ceramic
optical thermometry
up-conversion
down-conversion
Organic chemistry
QD241-441
spellingShingle glass
glass-ceramic
optical thermometry
up-conversion
down-conversion
Organic chemistry
QD241-441
Rajesh Dagupati
Robert Klement
Ramaraghavulu Rajavaram
José J. Velázquez
Dušan Galusek
In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis
description Transparent oxyfluoride glass-ceramics (GCs) with embedded β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub> crystals doped with Er<sup>3+</sup> ions were fabricated by a melt-quenching method with subsequent heat-treatment. The structural characterizations and spectroscopic techniques were performed to verify the precipitation of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub> crystals and partition of the Er<sup>3+</sup> dopant into the crystals. Bright green up-conversion (UC) emission was achieved in Er<sup>3+</sup>-doped glass-ceramic (Er-GC). Furthermore, the temperature-dependent visible UC behavior based on thermally coupled energy levels (TCLs) and non-thermally coupled energy levels (NTCLs) was also examined in the temperature range 298 k to 823 K with maximum relative sensitivity (<i>S<sub>r</sub></i>) of 1.1% K<sup>−1</sup> at 298 K for TCLs in Er-G and Er-GC samples.
format article
author Rajesh Dagupati
Robert Klement
Ramaraghavulu Rajavaram
José J. Velázquez
Dušan Galusek
author_facet Rajesh Dagupati
Robert Klement
Ramaraghavulu Rajavaram
José J. Velázquez
Dušan Galusek
author_sort Rajesh Dagupati
title In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis
title_short In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis
title_full In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis
title_fullStr In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis
title_full_unstemmed In Situ Synthesis of β-Na<sub>1</sub>.<sub>5</sub>Y<sub>1</sub>.<sub>5</sub>F<sub>6</sub>: Er<sup>3+</sup> Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis
title_sort in situ synthesis of β-na<sub>1</sub>.<sub>5</sub>y<sub>1</sub>.<sub>5</sub>f<sub>6</sub>: er<sup>3+</sup> crystals in oxyfluoride silicate glass for temperature sensors and their spectral conversion and optical thermometry analysis
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/c1273b26ce4d4e95a557b1b9554353d7
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