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(LiF-CaF2)eut-xSmF3(-xGdF3)(x=0.03～0.50)熔盐通过自然冷却和快速冷却处理后得到褶状和球状两种形貌.通过X射线衍射、吸收光谱和荧光光谱分析发现,LiF可以稳定晶胞结构;而LnF3含量直接影响其相结构和晶态.(LiF-CaF2)eut-xSmF3(-xGdF3)体系的光致发光性能受LnF3含量影响,当SmF3含量为0.03时,Sm3+的发射带强度最大.无论采用哪种冷却方式,样品形貌会影响其光学属性,机械研磨后样品的荧光性能和发光强度增大.研究表明,荧光光谱是一种可用于检测或验证谱带显著分裂后可降低局部对称性的光谱技术.“,”Samples of (LiF-CaF2)eut-xSmF3(-xGdF3) (x=0.03-0.50) were prepared by spontaneous cooling as well by very fast cooling (using the rapid solidification processing (RSP) method) which provide two types of sample morphology: riffle-like and sphere-like fragments. All types of samples were studied by XRD, optical absorption and fluorescence spectroscopy. The presence of LiF stabilises the cubic cell dimension, and the content of lanthanide fluorides presents influence on phases formed, as well as the crystallinity of the system, in both the spontaneously and rapidly-cooled systems. The photoluminescence properties of the investigated systems are dependent on the lanthanide fluoride content. The intensity of the emission bands, corresponding to the Sm3+ ion, reaches the maximum when the Sm content is x(SmF3)=0.03. An even stronger dependence is observed of optical properties on the morphology of the samples, i.e. whether the samples are spontaneously cooled or processed by the RSP method followed by mechanical grinding. Mechanical grinding enhances the luminescent properties and leads to higher emission intensities. It is also shown that the photoluminescent spectroscopy is suitable for detection/approval of lowered local symmetry via significant splitting of spectral bands.