Investigation of Ce3+ luminescence in borate-rich borosilicate glasses
| Autor: | Luiz G. Jacobsohn, Artem A. Trofimov, Ugur Akgun, Makena A. Dettmann, M.W. Kielty, M.R. Marchewka, M.G. Chapman, V. Herrig |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Analytical chemistry chemistry.chemical_element Mineralogy 02 engineering and technology medicine.disease_cause 01 natural sciences Matrix (chemical analysis) symbols.namesake 0103 physical sciences Materials Chemistry medicine Boron 010302 applied physics Borosilicate glass 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials Cerium chemistry Ceramics and Composites symbols 0210 nano-technology Luminescence Raman spectroscopy Excitation Ultraviolet |
| Zdroj: | Journal of Non-Crystalline Solids. 471:357-361 |
| ISSN: | 0022-3093 |
| Popis: | An investigation of Ce-activated borate-rich borosilicate glasses was performed in a composition range previously unexplored, with high B 2 O 3 :SiO 2 ratios from 4.83:1 to 8.75:1. Glass samples were prepared by the melt quenching method in air. Samples were individually heated for 15 min at 1000 °C, evaluated for weight loss due to the release of volatile species, followed by a final melt for 15 min at 1000 °C, and then annealed at 350 °C for one hour to enhance stability. Particular emphasis was placed on the luminescence of the glasses investigated under X-ray and ultraviolet excitation. Luminescence was interpreted in terms of defects and Ce 3 + in different environments. The results indicated it was possible to achieve a composition of the host matrix that exhibited ultraviolet transparency cutoff at 326 nm and a well-defined emission from Ce 3 + , especially under X-ray excitation. |
| Databáze: | OpenAIRE |
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