采用高温固相法制备了荧光粉Y2-x(W,Mo)O6∶Eu3+,xLi+，利用X射线衍射仪和电子扫描显微镜对样品的结构和形貌进行了表征，并利用荧光光谱法分析了样品的光谱特性。首先在Y2WO6中掺入少量的Mo6+离子，掺入Mo6+后增加了原Y2WO6∶Eu3+的激发光谱在近紫外光区的吸收，扩展了激发光谱的谱宽，但却使Y2WO6∶Eu3+发光强度降低。为解决这一问题，在Y2W0.96Mo0.04O6∶Eu3+中掺入Li+离子，Li起到助熔剂和润滑剂的作用，有效提高了Y2W0.96Mo0.04O6∶Eu3+的发光强度。

The photoluminescence properties of Y2-x (W,Mo)O6∶Eu3+,xLi+ were investigated in this paper. The excitation spectra of Y2(W,Mo)O6∶Eu3+ showed two broad excitation bands at 290 and 368 nm which were attributable to the O2- → W6+ and O2- → Mo6+ transitions, respectively. The excitation band edge moved from 370 nm to 450 nm with the incorporation of Mo6+ ions. The emission spectra exhibited two weak lines at 588, 593 nm owing to the 5D0 → 7F1 transition, and strong sharp peak at about 610 nm owing to the5D0 → 7F2 transition of the Eu3+ ion. Moreover, the bluish-green luminescence of the WO6-6 group corresponding to the 3T1u→1A1u transition was also observed in these compounds. The emission of the WO6-6 decreases with the increasing concentration of Mo6+ in Y2(W,Mo)O6∶Eu3+ due to the energy transfer with the process WO6-6→MoO6-6. As a result, pure red color emission was obtained with the incorporation of Mo6+ ions. However, the emission intensities of Y2(W,Mo)O6∶Eu3+ decreased with incorporation of Mo6+ ions. In order to enhance the emission intensities of Y2(W,Mo)O6∶Eu3+, Li+ ions were introduced into Y2(W,Mo)O6∶Eu3+. The red luminescence of Eu3+ in Y2(W,Mo)O6 was greatly enhanced after codoping monovalent alkali metal ions Li+ into the lattice. The morphology of powder particles was characterized by scanning electron microscope. The incorporation of Li+ increased the particle grain size. The hexagonal crystalline of the Y2(W,Mo)O6∶Eu3+,Li+ powder had a preferred growth orientation. It was speculated that the Li+ ions may serve as a selfpromoter for better crystallization or as a lubricant for the complete incorporation of the Eu3+ ions into the host lattice, and it resulted to the enhancemednt of PL of Y2(W,Mo)O3∶Eu3+.This study showed that the red phosphor, Y2(W,Mo)O6∶Eu3+ incorporated with Li+ ions was advantageous for LEDs application.