用水热法,以乙醇-水混合溶剂作为介质,在较低的温度(350 ℃)和压力下(10 MPa),制备了YAG:Ce纳米发光粉体.利用激发光谱、发射光谱、X射线衍射和透射电子显微镜对其光学特性和形貌进行了研究.结果表明,随着稀土离子Ce3+掺杂量的增加,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,发光强度达到最大.生成物为纯YAG相粉体,其粒径分布均匀,呈球形,颗粒大小为100 nm左右.
[1] 马林, 胡建国, 万国江, 胡学芳, 闫世润, 虞力刚, 王惠琴, 徐燕, MA Lin, HU Jian-guo, WAN Guo-jiang, HU Xue-fang, YAN Shi-run, YU Li-gang, WANG Hui-qin, XU Yan. YAG:Ce发光材料合成的助熔剂研究 [J]. 发光学报 2006.doi:10.3321/j.issn:1000-7032.2006.03.013
[2] 丁建红, 李许波, 倪海勇, 黄朝辉, 张震, DING Jian-hong, LI Xu-bo, NI Hai-yong, HUANG Chao-hui, ZHANG Zhen. 白光LED用YAG:Ce3+荧光粉的性能研究 [J]. 广东有色金属学报 2006.doi:10.3969/j.issn.1673-9981.2006.01.003
[3] 李霞, 刘宏, 王继扬, 崔洪梅, 张旭东. 醇-水热法制备钇铝石榴石(YAG)纳米粉体 [J]. 无机材料学报 2004.doi:10.3321/j.issn:1000-324X.2004.05.032
[4] 董国义, 韦志仁, 李志强, 杨志平, DONG Guo-yi, WEI Zhi-Ren, LI Zhi-qiang, YANG Zhi-ping. 共激活剂Br-, I-对ZnS:Mn, Cu*X发光中心的影响 [J]. 河北大学学报(自然科学版) 2001.doi:10.3969/j.issn.1000-1565.2001.01.010
[5] OHNO K, ABE T. Effect of BaF2 on the synthesis of the single-phase cubic YAG:Tb [J]. Journal of the Electrochemical Society 1986, 133(03).
[6] Ikesue A., Kamata K., Furusato I.. FABRICATION OF POLYCRYSTALLINE, TRANSPARENT YAG CERAMICS BY A SOLID-STATE REACTION METHOD [J]. Journal of the American Ceramic Society 1995, 1(1).
[7] MICHAEL VEITH, SANJAY MATHUR. Low temperature synthesis of nanocrystalline YAG and Ce-doped YAG via different sol-gel methods [J]. Journal of Materials Chemistry 1999, 9.
[8] VAQUEIRO P, LOPEQUEA M A. Influence of complexing agents and pH yttrium-iron garnet synthesized by the sol-gel method [J]. Chemistry of Materials 1997, 9.
[9] ROY SUKUMAR, WANG LIWU, SIGMUND WOLFGANG. Synthesis of YAG by a citrate-nitrate combustion technique [J]. Materials Letters 1999, 39.
[10] LI Jiguang, IKEGAMI T, LEE J-H. Co-precipitation synthesis and sintering of YAG powders:the effect of precipitant [J]. Journal of the European Ceramic Society 2000, 20.
[11] WANG Hongzhi, GAO Lian, NIIHANA K. Synthesis of nanoscaled yttrium aluminum garnet powder by the co-precipitation method [J]. Materials Science and Engineering 2000, A288(01).
[12] TAKAMORI T, DAVID L D. Controlled nucleation for hydrothermal growth of yttrium-aluminum garnet powders [J]. American Ceramic Society Bulletin 1986, 65(09).
[13] HAKUTA YUKIYA, SEINO KEZUEI, KOMINAMI HIROSHI. Synthesis of yttrium alumina garnet by the hydrothermal method [J]. Journal of the American Ceramic Society 1991, 74.
