| LaVO4：Dy^3＋同质异形体的水热合成和荧光性能 |
| |
| 引用本文： | 刘国聪.LaVO4：Dy^3＋同质异形体的水热合成和荧光性能[J].玉林师范学院学报,2010,31(5):52-55. |
| |
| 作者姓名： | 刘国聪 |
| |
| 作者单位： | 玉林师范学院材料研发和化学生物传感技术所教授博士,广西玉林537000 |
| |
| 基金项目： | the financial support from Education Bureau of Guangxi Province，Excellent talent of Guangxi high education，Technology Research and Exploitation of Guangxi Province |
| |
| 摘 要： | 采用简单的水热反应合成了新型棒状、棒束状和针状花型的四方相LaVO4：Dy3＋晶体,用X粉末衍射（XRD）、扫描电镜（SEM）和荧光光谱（PL）分别测试了水热产品的物相结构、颗粒形貌和荧光性能.实验结果表明,前驱体浓度和反应温度对不同形貌LaVO4：Dy3＋晶体的形成起到了关键作用。花状LaVO4：Dy3＋晶体比棒状和棒束状样品具有更好的蓝黄比（B/Y）,同时阐述了LaVO4：Dy3＋同质异形体的形成机制.
|
| 关 键 词： | LaVO4：Dy^3＋水热合成 荧光性能 |
Hydrothermal synthesis and luminescence of polymorphological LaVO4: Dy3+ phosphors |
| |
| LIU Guo-cong.Hydrothermal synthesis and luminescence of polymorphological LaVO4: Dy3+ phosphors[J].Journal of Yulin Teachers College,2010,31(5):52-55. |
| |
| Authors: | LIU Guo-cong |
| |
| Institution: | LIU Guo-cong(Institute of advanced materials ＆ Chembiosensing technology,Yulin Normal University,Yulin,Guangxi 537000) |
| |
| Abstract: | Tetragonal LaVO4: Dy3+ with novel morphologies of rod, rod bundles and needle flower were successfully synthesized via a facile and surfactant-free hydrothermal process. The as-prepared samples were characterized by using X-ray diffraction (XRD),scanning electron microscopy (SEM), and photoluminescence spectroscopy (PL). The experimental results showed that the concentration of the precursor and the reaction temperature played important roles in morphological evolution of LaVO4: Dy3+ nanocrystals (NCs). Moreover, flower-like LaVO4: Dy3+ exhibited a higher B/Y value compared with nanorod and rod bundle LaVO4: Dy3+. Possible growth mechanisms of polymorphological LaVO4: Dy3+ nanostructures were briefly discussed. |
| |
| Keywords: | LaVO4: Dy3+ hydrothermal synthesis luminescence |
| 本文献已被 维普 万方数据 等数据库收录！ |
