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| Synthesis and Properties of Well-dispersive and Spherical YAG:Ce3+ Phosphors |
| WANG Lei, JIANG Fenghua, GONG Haibo, WANG Jieqiang |
| School of Materials Science and Engineering, University of Jinan, Jinan 250022 |
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Cite this article:
WANG Lei JIANG Fenghua GONG Haibo WANG Jieqiang. Synthesis and Properties of Well-dispersive and Spherical YAG:Ce3+ Phosphors. Chin J Mater Res, 2012, 26(4): 414-418.
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Abstract The well–dispersive single–phase YAG:Ce3+ phosphors with average particle size of 2μm were synthesized by microwave homogeneous precipitation and spray-drying method, combining with fluxassisted calcination. The effect of combined actions on calcination conditions and morphology, dispersity and luminescence performance of YAG:Ce3+ particles was investigated. The results show that spherical-like YAG precursor can be obtained by a combination of microwave homogeneous precipitation and spray-drying methods, and the formation temperature of pure phase of YAG lowered to 1150oC with NaF as a flux. The crystallization and emission intensity are obviously improved with increasing contents of NaF flux, and blue-shift in the PL spectrum was found. The maximum emission intensity was obtained after 6wt% NaF was added, and H3BO3–NaF flux can lead to a better luminescence property of YAG:Ce3+ compared to that by NaF flux.
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Received: 19 April 2012
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| Fund: Supported by The Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry No.SQT1102. |
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