镧系金属有机骨架（Ln-MOFs）继承镧系离子独特的发光性能，具有孔隙度好、拓扑多样性、比表面积大等特点，是发光MOFs的重要组成部分，在防伪传感等领域中具有广阔的应用前景。将钙钛矿量子点引入MOFs构建双模发光的防伪材料是近年来研究热点，其中主骨架和客体骨架相互作用导致发光强度或颜色的变化。本文采用两步工艺法，首先形成PbBr₂@Eu-MOF前驱体，然后通过原位合成法，在常温中制备CsPbBr₃@EuBTC复合材料，通过红外、XRD、TEM等表征其组成和形貌结构，测试材料在不同溶剂环境中的发光性能。结果表明CsPbBr₃@EuBTC复合材料的水稳定性和热稳定性远高于纯CsPbBr₃量子点，激发光谱符合镧系离子和CsPbBr₃量子点的发光性能，证实CsPbBr₃@EuBTC复合材料潜在的光学防伪和传感应用前景。

Lanthanide organometallic skeletons (Ln-MOFs) inherit the unique luminescence properties of lanthanide ions and are characterized by good porosity, topological diversity and large specific surface area. As an important component of luminescent MOFs, Ln-MOFs have broad application prospects in anti-counterfeiting sensing and other fields. In recent years, the introduction of perovskite quantum dots into MOFs to construct two-mode luminescent anti-counterfeiting materials has been a hot research topic, in which the interaction between the main skeleton and the guest skeleton leads to the change of luminescence intensity or color. In this paper, a two-step process is adopted, firstly, PbBr₂@Eu-MOF precursor is formed, and then CsPbBr₃@EuBTC composite material is prepared at room temperature by in-situ synthesis method. The composition and morphology of the composite material are characterized by infrared, XRD, TEM, etc., and the luminous properties of the material in different solvent environments are tested. The results show that the water and thermal stability of CsPbBr₃@EuBTC composite is much higher than that of pure CsPbBr₃ quantum dots, and the excitation spectra are consistent with the lanthanide ions and CsPbBr₃ quantum dots, which confirms the potential optical anti-counterfeiting and sensing application prospect of CsPbBr₃@EuBTC composite.