The Charge Distribution, Seebeck Coefficient, and Carrier Concentration of CuCrLnS (Ln = Dy-Lu).

The atom oxidation states were determined using the binding energies of the core S2p-, Cu2p-, Cr2p-, and Ln3d-levels in CuCrLnS (Ln = Dy-Lu) solid solutions. The charge distribution on the matrix elements (Cu, Cr, and S) remained unaffected after cationic substitution. The sulfur atoms were found to be in the S oxidation state, the copper-Cu, and the chromium-Cr.

Charge Distribution in Layered Lanthanide-Doped CuCrLnS (Ln = Pr-Tb) Thermoelectric Materials.

The charge distribution study of metal atoms in CuCrLnS (Ln = Pr-Tb) solid solutions was carried out using X-ray photoelectron spectroscopy (XPS). The analysis of the binding energy of S2p, Cu2p, Cr2p, Ln3d and Ln4d levels allows one to determine the oxidation state of atoms. Copper atoms were found to be monovalent.