Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses
Borogermanate glasses singly doped with Dy<sup>3+</sup> ions were synthesized and then studied using the absorption and luminescence spectra. Spectroscopic changes of Dy<sup>3+</sup> ions have been examined for compositional-dependent glasses with various molar ratios GeO<...
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MDPI AG
2022-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/24/9042 |
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| author | Wojciech A. Pisarski |
| author_facet | Wojciech A. Pisarski |
| author_sort | Wojciech A. Pisarski |
| collection | DOAJ |
| description | Borogermanate glasses singly doped with Dy<sup>3+</sup> ions were synthesized and then studied using the absorption and luminescence spectra. Spectroscopic changes of Dy<sup>3+</sup> ions have been examined for compositional-dependent glasses with various molar ratios GeO<sub>2</sub>:B<sub>2</sub>O<sub>3</sub>. In this work, several spectroscopic parameters of Dy<sup>3+</sup> ions were obtained experimentally and compared to the calculated values from the Judd–Ofelt theory. Luminescence spectra measured for borogermanate glasses consist of blue, yellow and red bands, which correspond to <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>15/2</sub>, <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>13/2</sub> and <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>11/2</sub> transitions of Dy<sup>3+</sup>, respectively. Luminescence lifetimes for the <sup>4</sup>F<sub>9/2</sub> excited state are reduced, whereas the stimulated emission cross-sections for the most intense <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>13/2</sub> yellow transition of Dy<sup>3+</sup> increase with increasing GeO<sub>2</sub> and decreasing B<sub>2</sub>O<sub>3</sub> concentrations in glass-hosts. Quantum efficiency of the <sup>4</sup>F<sub>9/2</sub> (Dy<sup>3+</sup>) excited state is nearly independent on molar ratios GeO<sub>2</sub>:B<sub>2</sub>O<sub>3</sub>. Attractive spectroscopic properties related to the <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>13/2</sub> transition of Dy<sup>3+</sup> ions are found for borogermanate glasses implying their potential utility for yellow laser action and solid-state lighting technology. |
| first_indexed | 2024-03-09T16:08:56Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T16:08:56Z |
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| spelling | doaj.art-4ea92cbabdc64a039a6e5bbe114ab8782023-11-24T16:26:08ZengMDPI AGMaterials1996-19442022-12-011524904210.3390/ma15249042Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate GlassesWojciech A. Pisarski0Institute of Chemistry, University of Silesia, Szkolna 9 Street, 40-007 Katowice, PolandBorogermanate glasses singly doped with Dy<sup>3+</sup> ions were synthesized and then studied using the absorption and luminescence spectra. Spectroscopic changes of Dy<sup>3+</sup> ions have been examined for compositional-dependent glasses with various molar ratios GeO<sub>2</sub>:B<sub>2</sub>O<sub>3</sub>. In this work, several spectroscopic parameters of Dy<sup>3+</sup> ions were obtained experimentally and compared to the calculated values from the Judd–Ofelt theory. Luminescence spectra measured for borogermanate glasses consist of blue, yellow and red bands, which correspond to <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>15/2</sub>, <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>13/2</sub> and <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>11/2</sub> transitions of Dy<sup>3+</sup>, respectively. Luminescence lifetimes for the <sup>4</sup>F<sub>9/2</sub> excited state are reduced, whereas the stimulated emission cross-sections for the most intense <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>13/2</sub> yellow transition of Dy<sup>3+</sup> increase with increasing GeO<sub>2</sub> and decreasing B<sub>2</sub>O<sub>3</sub> concentrations in glass-hosts. Quantum efficiency of the <sup>4</sup>F<sub>9/2</sub> (Dy<sup>3+</sup>) excited state is nearly independent on molar ratios GeO<sub>2</sub>:B<sub>2</sub>O<sub>3</sub>. Attractive spectroscopic properties related to the <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>13/2</sub> transition of Dy<sup>3+</sup> ions are found for borogermanate glasses implying their potential utility for yellow laser action and solid-state lighting technology.https://www.mdpi.com/1996-1944/15/24/9042borogermanate glassesDy<sup>3+</sup> ionsabsorptionemissionJudd–Ofelt analysis |
| spellingShingle | Wojciech A. Pisarski Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses Materials borogermanate glasses Dy<sup>3+</sup> ions absorption emission Judd–Ofelt analysis |
| title | Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses |
| title_full | Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses |
| title_fullStr | Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses |
| title_full_unstemmed | Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses |
| title_short | Judd–Ofelt Analysis and Emission Properties of Dy<sup>3+</sup> Ions in Borogermanate Glasses |
| title_sort | judd ofelt analysis and emission properties of dy sup 3 sup ions in borogermanate glasses |
| topic | borogermanate glasses Dy<sup>3+</sup> ions absorption emission Judd–Ofelt analysis |
| url | https://www.mdpi.com/1996-1944/15/24/9042 |
| work_keys_str_mv | AT wojciechapisarski juddofeltanalysisandemissionpropertiesofdysup3supionsinborogermanateglasses |