该【基于Li4SrCa(SiO4)2单一基质荧光粉的制备及发光性能研究 】是由【wz_198613】上传分享,文档一共【4】页,该文档可以免费在线阅读,需要了解更多关于【基于Li4SrCa(SiO4)2单一基质荧光粉的制备及发光性能研究 】的内容,可以使用淘豆网的站内搜索功能,选择自己适合的文档,以下文字是截取该文章内的部分文字,如需要获得完整电子版,请下载此文档到您的设备,方便您编辑和打印。基于Li4SrCa(SiO4)2单一基质荧光粉的制备及发光性能研究 摘要 本文研究了基于Li4SrCa(SiO4)2单一基质荧光粉的制备和发光性能。通过采用固相法合成Li4SrCa(SiO4)2单一基质粉末,然后在高温下再生,得到具有白色发光性能的荧光粉。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、光致发光(PL)等技术,对其结构和发光性能进行了表征。 结果表明,合成的Li4SrCa(SiO4)2单一基质荧光粉具有较高的发光效率和较宽的发光谱带,其主要发射峰位于435 nm处,对应蓝光发光。通过改变制备条件,我们发现其发光谱带可以在一定范围内自由调节,从而实现不同颜色的发光。此外,荧光粉的发光性能还受到温度和激发光源波长的影响。 综上,本文成功制备了具有高发光效率和宽发光谱带的Li4SrCa(SiO4)2单一基质荧光粉,并实现了对其颜色的调节。这项研究为荧光材料的设计和制备提供了新思路。 关键词:荧光粉;Li4SrCa(SiO4)2;固相法;发光性能;颜色调节 Abstract This paper studies the preparation and luminescence performance of Li4SrCa(SiO4)2 single-matrix fluorescent powder. Through the solid-phase synthesis method, Li4SrCa(SiO4)2 single-matrix powder is synthesized, and then regenerated at high temperature to obtain fluorescent powder with white luminescence performance. The structure and luminescence performance of the material are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) techniques. The results show that the synthesized Li4SrCa(SiO4)2 single-matrix fluorescent powder has high luminescence efficiency and a wide luminescence spectrum band. Its main emission peak is located at 435 nm, corresponding to blue light emission. By changing the preparation conditions, we found that its luminescence spectrum band can be freely adjusted within a certain range to achieve different colors of luminescence. In addition, the luminescence performance of the fluorescent powder is also affected by temperature and the wavelength of the excitation light source. In conclusion, this paper successfully prepared Li4SrCa(SiO4)2 single-matrix fluorescent powder with high luminescence efficiency and a wide luminescence spectrum band, and realized the adjustment of its color. This research provides a new idea for the design and preparation of fluorescent materials. Keywords: fluorescent powder; Li4SrCa(SiO4)2; solid-phase synthesis; luminescence performance; color adjustment