全文下载：2012020144
谢倩， 蒲锡鹏*， 钱先华， 张大凤， 邓爱霞， 王自红， 孙腾， 陈维龙
（聊城大学 材料科学与工程学院， 山东 聊城 252000）
摘要:采用燃烧法合成了系列NaLa(1-x)Tbx(MoO4)2绿色荧光粉。分别采用XRD和荧光分光光度计表征了合成样品的结构和发光性能，系统研究了煅烧温度及Tb3+的掺杂量对所得荧光粉物相组成及发光性能的影响。结果表明：采用燃烧法制备的NaLa(1-x)-Tbx(MoO4)2绿色荧光粉结晶良好、晶相单一、在280 nm波长激发下具有良好的发光性能。确定煅烧温度为1 000 ℃，Tb3+的掺杂量x=0.5时发光效果最强。作为对照，采用高温固相法合成了NaLa0.5Tb0.5(MoO4)2荧光粉，结果表明，采用燃烧法合成的NaLa0.5-Tb0.5(MO4)2荧光粉具有更高的发光强度，并且大大缩短了煅烧时间。
关键词:燃烧法； NaLa(1-x)Tbx(MoO4)2； 荧光粉； 发光性能
中图分类号: O 482.31文献标志码： A
Combustion Synthesis and Luminescence Properties of NaLa(1-x)Tbx(MoO4)2 PhosphorXIE Qian, PU Xi-peng, QIAN Xian-hua, ZHANG Da-feng, DENG Ai-xia, WANG Zi-hong, SUN Teng, CHEN Wei-long
（School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000，China）
Abstract:The green phosphors NaLa(1-x)Tbx(MoO4)2 with different concentrations of Tb3+ were synthesized via the combustion synthesis method. The phase composition and optical properties of as-synthesized samples were studied by X-ray powder diffraction and photoluminescence spectra. The influences of processing parameters, such as synthesis temperature and the concentration of Tb3+ on phase compositions and luminescent properties are investigated systematically. The results show that the green phosphors NaLa(1-x)Tbx(MoO4)2synthesized at 1 000℃ and x=0.5 exhibits the strongest green emission under 280 nm excitation. As a comparison, NaLa0.5Tb0.5(MoO4)2was prepared by the solid-state reaction method. The results show that: at the same temperature, the green phosphor NaLa0.5Tb0.5(MoO4)2 synthesized via the combustion synthesis method not only has the stronger emission intensity but also greatly reduces the calcination time.
Key words:combustion method; NaLa(1-x)Tbx(MoO4)2; phosphor; luminescence properties
收稿日期:2011-09-10
基金项目： 聊城大学大学生科技文化创新基金项目（SRT11007CL2）.
作者简介: 谢倩(1977—)，女，讲师.*通信联系人.
