以水和N,N-二甲基甲酰胺（DMF）为二元溶剂,丁二酸钠为辅助剂的溶剂热法合成纳米晶自组装CaWO₄：Tb³⁺微球。探讨N,N-二甲基甲酰胺的用量、丁二酸钠的用量及Tb³⁺掺杂物质的量分数对发光性能的影响。利用X射线衍射（XRD）、紫外漫反射（DRS）、扫描电镜（SEM）、光致发光光谱（PL）、暗箱式紫外分析仪等对产物结构、形貌及其性能进行表征。实验表明：添加5 mL的DMF作为溶剂,加入1.2 g丁二酸钠为辅助剂,合成的产物为四方晶相的纳米晶自组装CaWO₄：Tb³⁺微球。该微球在257 nm激发下表现出强发射峰,在546 nm 附近有较强的荧光发射峰,荧光强度是未添加丁二酸钠对应产物的3.8倍。

The nanocrystalline self-assembled CaWO₄：Tb³⁺ microspheres were synthesized by solvothermal methods with wa-ter and N,N-dimethylformamide（DMF） as binary solvent and sodium succinate as auxiliary agent.The effects of the volume of N,N-dimethylformamide,the dosage of sodium succinate and the amount-of-substance fraction of Tb³⁺ on luminescence properties of CaWO₄：Tb³⁺ were investigated in detail.The structure,morphology and properties of the product were character-ized by X-ray diffraction（XRD）,UV-vis diffuse reflectance spectroscopy（DRS）,scanning electron microscopy（SEM） and photoluminescence（PL） and dark-box ultraviolet analyzar etc..The results showed that the product was nanocrystalline self-assembled CaWO₄：Tb³⁺ microspheres with the tetragonal structure,which could be obtained after solvothermal treatment with 5 mL DMF as solvent and 1.2 g sodium succinate as additive.The microsphere showed a strong emission peak at 257 nm and a strong fluorescence emission peak near 546 nm.The fluorescence intensity of the microspheres was 3.8 times higher than that of the corresponding product without sodium succinate.