Preparation of YAG:Ce Ceramics with High Luminescent Properties
This study examines the synthesis of YAG:Ce precursor powder and luminescent ceramics by reverse chemical co-precipitation. We investigated the effects of sintering additives (CaO, MgO, and TEOS), Ce3+ activator concentration, vacuum sintering temperature, and the temperature of air annealing on the...
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| Главные авторы: | , , , , , , , , , , , |
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| Formato: | Статья |
| Idioma: | English |
| Publicado em: |
Springer
2025
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| Assuntos: | |
| Acesso em linha: | https://dspace.ncfu.ru/handle/123456789/30513 |
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| Resumo: | This study examines the synthesis of YAG:Ce precursor powder and luminescent ceramics by reverse chemical co-precipitation. We investigated the effects of sintering additives (CaO, MgO, and TEOS), Ce3+ activator concentration, vacuum sintering temperature, and the temperature of air annealing on the luminescent properties of YAG:Ce ceramics. The optimal parameters for achieving high luminescence efficiency were defined: sintering additive concentration of 0.01 wt.%, TEOS as the sintering additive, vacuum sintering temperature of 1800°C, and air annealing temperature of 600°C for TEOS-containing samples. A ceramic sample exhibiting a luminescence efficiency of 319 lm/W was achieved under laser radiation with a power of 190 mW and a spot diameter of approximately 5 mm. |
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