Highly efficient bluish white phosphors based on self-activated luminescent materials are essential part for fabricating white lighting diodes. Transition metals have a wide application in catalyst and photoluminescence aspects especially for molybdenum and tungsten, which multi-metal oxides also promote diverse properties. In this work, a serial of novel structural mixed phases phosphors LiCa₃MgV_3-XW_XO₁₂ (short as LCMV-W-X) combined with vanadate and tungsten oxides are constructed by sol-gel method for the first time. The photoluminescence quantum yield (PLQY) of LCMV-W-0.20 is significantly enhanced to 64.37% related to the decreasing of luminous centers distance and oxygen vacancies. The deeper reason for the significant enhancement in PLQY can be ascribed to the fact that the introduction of tungsten phase leads to the lattice deformation of [VO₄] and [WO₄] tetrahedron of LCMV-W-X, which increases the interaction of luminescence centers. At the same time, the luminescence characteristics of tungsten oxide make LCMV-W-X fluorescence performance change with the change of tungsten content. Hence, this work enlightens a new method to construct highly efficient phosphors.

基于自激活发光材料的高效蓝色白色磷光体是制造白色发光二极管必不可少的部分。过渡金属在催化剂和光致发光方面具有广泛的应用，尤其是对于钼和钨，其多金属氧化物还可以促进多种性能。在这项工作中，一系列新颖的结构混合相荧光粉LiCa ₃ MgV _3-X W _X O ₁₂首次通过溶胶-凝胶法与钒酸盐和氧化钨结合使用（简称LCMV-WX）。LCMV-W-0.20的光致发光量子产率（PLQY）显着提高至64.37％，这与发光中心距离和氧空位的减少有关。PLQY显着增强的更深层次原因可以归因于以下事实：钨相的引入导致LCMV-WX的[VO ₄ ]和[WO ₄ ]四面体的晶格变形，从而增加了发光中心的相互作用。同时，氧化钨的发光特性使LCMV-WX的荧光性能随钨含量的变化而变化。因此，这项工作启发了一种构造高效荧光粉的新方法。