水热法制备YAGCe纳米荧光粉

1、 .136.河北大学学报(自然科学版2009年 3结论图4YAG:Ce的透射电镜照片Fig.4TEM ima窖瞪of the fabrited YAG:Ce瑚口101panlcI伪利用水热法在有机环境下,醇、水体积比为2s 1,填充度为65%,反应温度为350的条件合成了YAG:Ce纳米荧光粉.掺杂的激活剂离子Ce3+对材料发光性能的影响较大,有一最佳的掺杂量.随着Ce3+离子掺杂量的增大,材料的发光强度先升高后降低,当Ce3+掺杂的摩尔分数为5%时,样品的发光强度最高.350条件下制备的YAG:Ce荧光粉为纯YAG相粉体,粒子呈球形,颗粒分布均匀,大小为100nm左右.参考文献:1马林,胡建

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7、2001,21(1:4144.(责任编辑:孟素兰 水热法制备YAG:Ce纳米荧光粉作者:李志强, 赵起, 庄云飞, 徐丽云, LI Zhi-qiang, ZHAO Qi, ZHUANG Yun-fei, XU Li-yun作者单位:河北大学,物理科学与技术学院,河北,保定,071002刊名: 河北大学学报(自然科学版英文刊名:JOURNAL OF HEBEI UNIVERSITY(NATURAL SCIENCE EDITION年,卷(期:2009,29(2被引用次数:0次参考文献(13条3.OHNO K.ABE T Effect of BaF2 on the synthesis of the

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11、I.KOMINAMI HIROSHI Synthesis of yttrium alumina garnet by the hydrothermal method 1991相似文献(3条2004,19(5首先采用共沉淀法制备钇铝石榴石前驱体, 然后以乙醇-水混合溶剂作为反应介质, 在较低的温度(300和压力(10MPa下, 制备分散性好的钇铝石榴石纳米粉体.并借助XRD,TEM, BET与IR等测试手段, 对所制备样品的性能进行了表征.实验结果表明, 在适当的醇-水比条件下可在较低的温度和压力下制备纯相的YAG纳米粉体, 其粒度大约为20nm, 分散性良好.并对YAG的醇-水热形成机理进行了初步探讨.LI Zhen-jun.GAO Ping水热法制备微米级钇铝石榴石(YAG晶体-人工晶体学报2009,38(1本文采用水热法,以Al(OH3和Y2O3为前驱物,3 mol/L KOH作矿化剂,高