本发明属于荧光材料领域，具体涉及一种超宽白色荧光材料及其制备方法和应用以及照明器具，所述紫外激发的超宽白光发光材料为在Sr2‑x‑yCaxBayAl1+zSi2‑zN1‑zO6+z中固溶活化剂Eu而形成，其化学式为Sr2‑x‑y‑aCaxBayAl1+zSi2‑zN1‑zO6+z:Eua，0≤x<2，0≤y<2，0≤x+y<2，‑1≤z≤1，0<a≤0.2。本发明提供的紫外激发的超宽白光发光材料具有较宽的发射光谱，并且发光源于单一Eu2+，发射光谱具有良好的光谱可控性，不会随温度变化产生明显的色漂移，在白光LED照明器等领域可显著改善其颜色特性，实现高品质健康白光光源。此外，本发明提供的紫外激发的超宽白光发光材料的固相烧结制备方法，合成温度较低，操作简单，易于批量化生产。

The invention belongs to the field of fluorescent materials, and particularly relates to an ultra-wide white fluorescent material, a preparation method and application of the ultra-wide white fluorescent material and a lighting appliance. The ultraviolet excited ultra-wide white light luminescent material is formed by solid solution of activator Eu in Sr2-x-yCaxBayAl1+zSi2-zN1-zO6+z, and the chemical formula of the ultra-wide white light luminescent material is Sr2-x-y-aCaxBayAl1+zSi2-zN1-zO6+z: Eua, specifically, x is greater than or equal to zero but less than two, y is greater than or equalto zero but less than two, x+y is greater than or equal to zero but less than two, z is greater than or equal to negative one but less than or equal to one, and a is greater than or equal to zero butless than or equal to 0.2. The ultraviolet excited ultra-wide white light luminescent material prepared by the preparation method has a wider emission spectrum with good spectral controllability andwithout generating obvious color drift along with temperature change, both due to the fact that the luminescence is from single Eu2+; and the color characteristic can be obviously improved when the ultra-wide white light luminescent material is applied to the fields of white light LED illuminators and the like to achieve a high-quality healthy white light source. In addition, the solid-phase sintering preparation method of the ultraviolet excited ultra-wide white light luminescent material has the advantages of lower synthesis temperature, simple operation and easy batch production.