Perovskite-graphene nanocomposites of rare-earth LaFeO₃-rGO and LaFeO₃ nanoparticles are synthesized and characterized. The preparation was done by citrate sol-gel method. The structural characterization has been performed using XRD and FT-IR. Scanning electron microscope (SEM) and atomic force microscope (AFM) were used to analyze the morphology of the prepared nanocomposite. Vibrating sample magnetometer (VSM) was used to study the magnetic properties of the investigated samples. Introducing graphene to the structure results increase in M_S. Also, the optical and thermal properties have been measured and discussed, and the effect of graphene is observed where it decreases the band gap than reported for pure LaFeO₃ nanoparticles.

合成并表征了稀土LaFeO ₃ -rGO和LaFeO ₃纳米粒子的钙钛矿-石墨烯纳米复合材料。通过柠檬酸盐溶胶-凝胶法完成制备。使用XRD和FT-IR进行了结构表征。用扫描电子显微镜（SEM）和原子力显微镜（AFM）分析了制备的纳米复合材料的形貌。振动样品磁力计（VSM）用于研究所研究样品的磁性能。向结构中引入石墨烯会导致M _S增加。而且，已经测量和讨论了光学和热性能，并且观察到石墨烯的作用，在这种作用下，带隙比纯LaFeO ₃纳米颗粒的能隙减小。