X-ray absorption spectra and conduction band structure of In2S3

X-ray absorption spectra of the spinel In2S3 were recorded at the sulphur K and indium L1 and L3 absorption edges, scanning the unoccupied electronic states of S p, In p, and In (s,d) symmetry, respectively. Alignment of all spectra on a common scale and comparison with calculated densities of states allowed an interpretation of all observed features in terms of final state character, chemical bonding and local symmetry. A picture of the conduction band structure is established.