Abstract
Y2.9Ce0.1Al5O12 (YAG:Ce3+) phosphors with 80±5nm were successfully prepared from a co-precipitated hydroxide gel by hydrothermal processing followed by the post-annealing process at 1200°C for 2h in air atmosphere. The YAG:Ce3+ nano-phosphors showed excitation peaks at 345 and 450nm and an emission peak at 530nm. The as-prepared YAG:Ce3+ phosphor showed a stable emission intensity under the continuous irradiation of blue excitation light, although the photobleaching behavior was observed in the literature. The photobleaching is probably suppressed by the complete crystallinity due to the post-annealing process and the solid morphology due to the hydrothermal process.
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