Abstract
Nano-sized ceramic powders with weaker aggregation of Nd 3 +-doped yttrium aluminum garnet (YAG:Nd 3 +) were synthesized via co-microemulsion and microwave heating. This method provides a limited small space in a micelle for the formation of nano-sized precursors. It also requires a very short heating time, thus reducing energy consumption in comparison with conventional solid-state sintering processes. As a result, small-sized particles with narrow size distribution, weaker aggregation and high purity were obtained. Powder X-ray diffraction results revealed that the structure of pure YAG:Nd 3 +nanoparticles was cubic garnet. Transmission electron microscopy results indicated that the synthesized particles were almost spherical with average diameters of 40 and 80 nm. The luminescent properties of YAG:Nd 3 +were investigated through PL. Under excitation at 488 nm, YAG:Nd 3 +nano-sized ceramic powders showed main emission bands of 1045–1080 nm because of 4 F 3/2 → 4 I 11/2 transitions that are identical to those observed for a single YAG:Nd 3 +crystal.
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Acknowledgments
This research was supported by grants from the National Science Foundation of China (Grant No. 21363027) and the Natural Science Foundation of Guangxi Province (No. 2011GXNSFA018060) and the Project Sponsored by the Scientific Research Foundation of GuangXi University (Grant No. XGZ130765).
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JUN, H., QI, P., XIA, L. et al. Luminescence properties of YAG:Nd 3+nano-sized ceramic powders via co-microemulsion and microwave heating. Bull Mater Sci 36, 1191–1194 (2013). https://doi.org/10.1007/s12034-013-0598-1
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DOI: https://doi.org/10.1007/s12034-013-0598-1