Charge transfer in misfit layered compounds

In order to understand binding mechanisms and the resulting stability of misfit layered compounds, the valence bands of (PbS)1.18TiS2 and (PbS)1.18(TiS2)2 were mapped along the ΓM(AL) direction in reciprocal space parallel to the surface. The results were compared to the experimental and the theoretical band structure of pure TiS2. The changes in the electronic structure were analyzed with regard to the effects that are known to occur in intercalated transition metal dichalcogenides and that can directly be attributed to a charge transfer from the intercalated species to the host material. The theoretical determination of the densities of states for the pure TiS2 and the misfit layered compound (PbS)1.18TiS2 confirms a charge transfer.