Phosphors with composition Ca2 ZnMoO6 were synthesized at temperatures of 800-1200°C using the solid-state method. Analysis of X-ray diffraction patterns of the Ca2 ZnMoO6 powders did not reveal a double perovskite structure. When the synthesis temperature was equal to or higher than 800°C, the synthesized Ca2 ZnMoO6 powders revealed a tetragonal structure (CaMoO4 ) rather than an orthorhombic structure (Ca2 ZnMoO6 ) and the cubic structure (Sr2 ZnMoO6 ) of a double perovskite. The ZnO phase was still observed at a synthesis temperature of 1200°C. The compositions of synthesized Ca2 ZnMoO6 powders differed from the prepared powder, and the Ca2 ZnMoO6 phosphors exhibited some important novel features. First, synthesized Ca2 ZnMoO6 compositions could emit light as a phosphor no activators, called Ca2 ZnMoO6 phosphors. Effect of synthesis temperature on luminescence properties of these Ca2 ZnMoO6 phosphors was readily observed, and some important novel features and properties were noted. Second, the phosphors presented only one broad characteristic emission peak in the visible light region. Third, measurement of the chromaticity diagram of the Ca2 ZnMoO6 phosphors revealed a white-light source. Through analysis, we determined why the synthesized Ca2 ZnMoO6 phosphors had just one broad characteristic emission peak.

中文翻译：

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具有白光发光的新型纯Ca2 ZnMoO6成分。

使用固态方法在800-1200°C的温度下合成了组成为Ca2 ZnMoO6的荧光粉。Ca2 ZnMoO6粉末的X射线衍射图谱分析未显示出钙钛矿结构。当合成温度等于或高于800°C时，合成的Ca2 ZnMoO6粉末显示出四方结构（CaMoO4）而不是正交晶结构（Ca2 ZnMoO6）和立方结构（Sr2 ZnMoO6）为双钙钛矿。在1200℃的合成温度下仍观察到ZnO相。合成的Ca2 ZnMoO6粉末的组成与制备的粉末不同，并且Ca2 ZnMoO6荧光粉表现出一些重要的新特征。首先，合成的Ca2 ZnMoO6组合物可以作为无活化剂的磷光体发光，称为Ca2 ZnMoO6磷光体。容易观察到合成温度对这些Ca2 ZnMoO6荧光粉的发光性能的影响，并指出了一些重要的新特征和性能。其次，磷光体在可见光区域仅呈现出一个宽广的特征发射峰。第三，Ca 2 ZnMoO 6磷光体的色度图的测量揭示了白光源。通过分析，我们确定了为什么合成的Ca2 ZnMoO6磷光体只有一个宽的特征发射峰。