Abstract
Y3-XCeXAl5O12 powder samples with cubic structure were successfully prepared via sol-gel method in this work. The co-effects of Ce-doping concentration and sintering temperature on structure and photoluminescence properties of Y3-XCeXAl5O12 powder were studied. Results showed that the optimal structure and photoluminescence properties of sample were obtained at Ce-doping X = 0.06. Further, we found that the sintering temperature at 800 °C led to crystallization of Y3-0.06Ce0.06Al5O12 powder, and this temperature was lower than previous reports. With rising sintering temperature to 1100 °C, x-ray diffraction patterns and scanning electron microscope images showed that Y3-0.06Ce0.06Al5O12 powder obtained more sufficient crystallization, larger grain size, and more obvious grain distribution. Furthermore, photoluminescence emission at 526 nm of Y3-0.06Ce0.06Al5O12 powder (excited by 459 nm) enhanced gradually with the increase of sintering temperature from 800 °C to 1100 °C.
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