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厦门大学 材料学院
收稿:2010-05-19,
修回:2010-7-14,
网络首发:2010-11-22,
纸质出版:2010-11-22
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郜盛夏, 陈毅彬, 曾人杰. 无团聚YAG:Ce<sup>3+</sup>荧光粉的制备与表征[J]. 发光学报, 2010,31(6): 806-811
GAO Sheng-xia, CHEN Yi-bin, ZENG Ren-jie. Preparation and Characterization of Agglomerate-free YAG:Ce<sup>3+</sup> Phosphor by Co-precipitating and Spray Drying[J]. Chinese Journal of Luminescence, 2010,31(6): 806-811
郜盛夏, 陈毅彬, 曾人杰. 无团聚YAG:Ce<sup>3+</sup>荧光粉的制备与表征[J]. 发光学报, 2010,31(6): 806-811 DOI:
GAO Sheng-xia, CHEN Yi-bin, ZENG Ren-jie. Preparation and Characterization of Agglomerate-free YAG:Ce<sup>3+</sup> Phosphor by Co-precipitating and Spray Drying[J]. Chinese Journal of Luminescence, 2010,31(6): 806-811 DOI:
采用共沉淀-喷雾干燥法制备YAG:Ce
3+
荧光粉。前驱体经热处理、研磨、酸洗碱洗后形成荧光粉。研究了前驱体料浆浓度、热处理条件、研磨、酸洗碱洗对粉末晶相、颗粒形貌、粒度和发光性能的影响。研究发现:料浆浓度为0.2
0.4
0.6mol/L时
前驱体颗粒形貌分别呈碎屑、光滑和褶皱状球形;无团聚光滑球形前驱体经1100℃热处理4h后
XRD未检测到杂相;继续升温至1550℃
荧光粉相对亮度随之提高;酸洗碱洗能够去除碎屑
获无团聚荧光粉
提高相对亮度。
paper
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