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材料研究学报  2012, Vol. 26 Issue (4): 414-418    
  研究论文 本期目录 | 过刊浏览 |
易分散球形YAG:Ce3+荧光粉的制备和性能
王磊, 姜奉华, 巩海波, 王介强
济南大学材料科学与工程学院 济南 250022
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
引用本文:

王磊 姜奉华 巩海波 王介强. 易分散球形YAG:Ce3+荧光粉的制备和性能[J]. 材料研究学报, 2012, 26(4): 414-418.
, , , . Synthesis and Properties of Well-dispersive and Spherical YAG:Ce3+ Phosphors[J]. Chin J Mater Res, 2012, 26(4): 414-418.

全文: PDF(950 KB)  
摘要: 将微波均相沉淀与喷雾干燥相结合, 并添加助熔剂辅助煅烧制备出单相YAG:Ce3+荧光粉体, 研究了微波均相沉淀与喷雾干燥的共同作用对煅烧条件和YAG:Ce3+荧光粉颗粒形貌、分散性和荧光性能的影响。结果表明, 这种单相YAG:Ce3+荧光粉体具有良好分散性, 平均粒径为2 μm; 将微波均相沉淀与喷雾干燥相结合能制备出分散性好的球形YAG前驱体颗粒; 添加NaF助熔剂使煅烧温度降低至1150℃, 并得到纯YAG晶相;随着NaF添加量的增加荧光粉结晶度提高、发光强度增强、发射光谱蓝移;NaF添加量(质量分数)为6%时荧光粉的荧光强度最高, 且与单一助熔剂比较, H3BO3--NaF混合助熔剂能更好的改善YAG:Ce3+的荧光性能。
关键词 无机非金属材料YAG:Ce3+喷雾干燥助熔剂荧光性能    
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.
Key wordsinorganic non-metallic materials    YAG:Ce3+    spray-drying    flux    luminescence property
收稿日期: 2012-04-19     
ZTFLH: 

TB321

 
基金资助:

教育部留学回国人员科研启动基金(SQT1102)资助项目。

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