Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials
This publication offers an economically promising method of persistent luminescent silicate glass synthesis that does not involve high temperatures or ready-made (separately synthesized) PeL particles. In this study, we demonstrate the formation of SrAl<sub>2</sub>O<sub>4</sub&g...
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2023-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/12/4416 |
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| author | Madara Leimane Katrina Krizmane Ivita Bite Jurgis Grube Virginija Vitola |
| author_facet | Madara Leimane Katrina Krizmane Ivita Bite Jurgis Grube Virginija Vitola |
| author_sort | Madara Leimane |
| collection | DOAJ |
| description | This publication offers an economically promising method of persistent luminescent silicate glass synthesis that does not involve high temperatures or ready-made (separately synthesized) PeL particles. In this study, we demonstrate the formation of SrAl<sub>2</sub>O<sub>4</sub> doped with Eu, Dy, and B in a SiO<sub>2</sub> glass structure using the one-pot low-temperature sol–gel synthesis method. By varying the synthesis conditions, we can use water-soluble precursors (e.g., nitrates) and a dilute aqueous solution of rare-earth (RE) nitrates as starting materials for SrAl<sub>2</sub>O<sub>4</sub> synthesis, which can be formed during the sol–gel process at relatively low sintering temperatures (600 °C). As a result, translucent, persistently luminescent glass is obtained. The glass shows the typical Eu<sup>2+</sup> luminescence and the characteristic afterglow. The afterglow duration is about 20 s. It is concluded that the slow drying procedure (2 weeks) is optimal for these samples to sufficiently get rid of the excess water (mainlyOH groups) and solvent molecules that can influence the strontium aluminate luminescence properties and have a pernicious effect on the afterglow. It can also be concluded that boron is playing a crucial role in the formation of trapping centers needed for PeL processes in the PeL silicate glass. |
| first_indexed | 2024-03-11T02:12:59Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T02:12:59Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-f3fd071b21654f249bfad176467d992a2023-11-18T11:25:58ZengMDPI AGMaterials1996-19442023-06-011612441610.3390/ma16124416Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B MaterialsMadara Leimane0Katrina Krizmane1Ivita Bite2Jurgis Grube3Virginija Vitola4Institute of Solid State Physics, University of Latvia, Kengaraga str. 8, LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, Kengaraga str. 8, LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, Kengaraga str. 8, LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, Kengaraga str. 8, LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, Kengaraga str. 8, LV-1063 Riga, LatviaThis publication offers an economically promising method of persistent luminescent silicate glass synthesis that does not involve high temperatures or ready-made (separately synthesized) PeL particles. In this study, we demonstrate the formation of SrAl<sub>2</sub>O<sub>4</sub> doped with Eu, Dy, and B in a SiO<sub>2</sub> glass structure using the one-pot low-temperature sol–gel synthesis method. By varying the synthesis conditions, we can use water-soluble precursors (e.g., nitrates) and a dilute aqueous solution of rare-earth (RE) nitrates as starting materials for SrAl<sub>2</sub>O<sub>4</sub> synthesis, which can be formed during the sol–gel process at relatively low sintering temperatures (600 °C). As a result, translucent, persistently luminescent glass is obtained. The glass shows the typical Eu<sup>2+</sup> luminescence and the characteristic afterglow. The afterglow duration is about 20 s. It is concluded that the slow drying procedure (2 weeks) is optimal for these samples to sufficiently get rid of the excess water (mainlyOH groups) and solvent molecules that can influence the strontium aluminate luminescence properties and have a pernicious effect on the afterglow. It can also be concluded that boron is playing a crucial role in the formation of trapping centers needed for PeL processes in the PeL silicate glass.https://www.mdpi.com/1996-1944/16/12/4416persistent luminescenceglasssol–gel synthesis |
| spellingShingle | Madara Leimane Katrina Krizmane Ivita Bite Jurgis Grube Virginija Vitola Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials Materials persistent luminescence glass sol–gel synthesis |
| title | Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials |
| title_full | Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials |
| title_fullStr | Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials |
| title_full_unstemmed | Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials |
| title_short | Sol–Gel Synthesis of Translucent and Persistent Luminescent SiO<sub>2</sub>@ SrAl<sub>2</sub>O<sub>4</sub> Eu, Dy, B Materials |
| title_sort | sol gel synthesis of translucent and persistent luminescent sio sub 2 sub sral sub 2 sub o sub 4 sub eu dy b materials |
| topic | persistent luminescence glass sol–gel synthesis |
| url | https://www.mdpi.com/1996-1944/16/12/4416 |
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