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Preparation of YAG:Ce Ceramics with High Luminescent Properties

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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Bibliografiska uppgifter
Huvudupphovsmän: Lapin, V. A., Лапин, В. А., Kravtsov, A. A., Кравцов, А. А., Tarala, V. A., Тарала, В. А., Suprunchuk, V. E., Супрунчук, В. Е., Malyavin, F. F., Малявин, Ф. Ф., Vakalov, D. S., Вакалов, Д. С.
Materialtyp: Статья
Språk:English
Publicerad: Springer 2025
Ämnen:
Activator concentration
Air annealing
Ceramics
Luminescence
Sintering additive
Vacuum sintering
YAG:Ce
Länkar:https://dspace.ncfu.ru/handle/123456789/30513
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Sammanfattning: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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