The Sr2 SiO4 :0 .03Eu3+ red phosphors were synthesized under relatively low tem-perature by three-step calcination solid-state method ,which was compared with the tradition-al one-step high temperature solid-state method .The phosphors were characterized by the X-ray diffraction (XRD) ,file emission scanning electron microscope (SEM ) ,fluorescence spec-trophotometer (PL) ,respectively .The results show that the Sr2SiO4 :0 .03Eu3+ phosphors with high purity and size-uniformity and favorable fluorescence properties can be synthesized at 950 ℃ .Excitation and emission spectra show that the phosphor can be effectively excited by ultraviolet (394 nm) and blue light (466 nm) .Due to the transition radiation of 5D0 → 7 F2 , the main emission peak is located at 620 nm with the strongest red light emission and its in-tensity is much larger than the emission peak at 594 nm .The color coordinate of the phos-phors can be achieved at (0 .6025 ,0 .3913) ,w hich is close to the standard red light .It has potential applications in the solid state lighting and display devices .%采用三步煅烧固相法在相对较低温度条件下成功合成Sr2 SiO4:0.03Eu3+红色硅酸盐荧光粉,且与传统的一步煅烧高温固相法(1300℃)作对比,通过X射线衍射(XRD),场发射扫描电子显微镜(FE-SEM)及荧光分光光度计(PL)等手段对样品进行测试表征.结果表明,在三步煅烧法的烧结温度为950℃时可以制备出纯度较高、颗粒尺寸较均匀且发光性能优良的Sr2 SiO4:0.03Eu3+红色荧光粉.激发和发射光谱表明该荧光粉可被紫外光(394nm)和蓝光(466nm)有效激发,在5D0→7F2跃迁辐射的主要发射峰620nm处发射的红光最强,强度远大于594nm处的发射峰.其CIE坐标为(0.6025,0.3913),接近标准的红光坐标(0.67,0.33),在固态照明以及平板显示设备上具有潜在的应用价值.
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