Y_2O_3:Eu^(3+)纳米晶的制备及其光学性能研究  

Synthesis and Luminescence Properties of Y_2O_3:Eu^(3+) Nanocrystals

作　　者：邵鑫[1,2,3] 刘凤珍[1,2] 孙巧珍[1] 孟宪华[1] 刘雪华[1] 

机构地区：[1]聊城大学材料科学与工程学院,山东聊城252059 [2]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000 [3]聊城有色金属研究院,山东聊城252059

出　　处：《中国材料进展》2012年第8期47-51,共5页Materials China

基　　金：山东省中青年科学家奖励基金(2005);固体润滑国家重点实验室开放课题(0804)

摘　　要：以NaOH,Y(NO3)3.6H2O和Eu(NO3)3.6H2O为前驱体,通过添加络合剂PEG-2000,采用水热法,成功地合成了Y2O3∶Eu3+纳米棒和纳米管,并采用先进的测试手段对其结构和性能进行了表征与测试。探讨了Y2O3∶Eu3+纳米棒和纳米管的生长机制,同时研究了Y2O3:Eu3+纳米晶的光致发光性能。研究结果表明,水热温度、反应时间、NaOH的添加量和PEG-2000对产物形貌有着非常重要的影响,所制备的材料具有Eu3+的特征红光发射,并在Eu3+的掺杂量为5%(摩尔分数)时样品发光最好。Highly uniform and monodisperse Y2O3 ： Eu^3＋ nanorods and nanotubes were successfully prepared in large quantities using a facile hydrothermal approach assisted by a capping reagent, PEG-2000. Cheaper NaOH, Y（ NO3 ） 3·6H2O and Eu（ NO3 ）3 · 6H2O were used as the raw materials. The formation mechanism of Y2O3 ： Eu^3＋ nanorods and nanotubes were discussed. The results showed that the morphologies of Y2O3 ： Eu^3＋ were depended on the different reaction temperatures, reaction time, the addition of NaOH and PEG-2000, and the prepared material had characteristic red emission of Eu^3＋ , while identifying 5% Eu^3＋ -doped Y203 had the best property of luminescence.

关 键 词：水热 Y2O3:Eu3+ PEG-2000 发光 

分 类 号：TQ133.23[化学工程—无机化工]