▎ 摘　　要

Multilayered fluorinated graphene exhibits novel properties and finds applications in electrodes, membranes, thermal materials, transistors, and so on These applications rely heavily on interlayer interactions that arise from sheet stacking. Because the properties of multilayered fluorinated graphene are very sensitive to the synthetic conditions, characterization of the graphene structure becomes particularly important We theoretically analyzed the structure and interactions in multilayered fluorinated graphene by IR spectroscopy. Significant differences between the multiple- and single-layer signals were observed with the F-F vibrational motions around 700 cm(-1), because these motions are strongly affected by fluorines of neighboring layers. The intensity and profile of the F-F vibration peaks near 700 cm(-1) change dramatically depending on the number of layers and the fluorine-addition pattern. These findings suggest that IR spectroscopy can be used for comprehensive characterization of the structure of multilayered fluorinated graphene.