Crystallographic, magnetic and luminescence characteristics of CuIn2Se4 with a cadmium thioaluminate structure and Cu(In1-xGax)(2)Se-4 solid solutions (0 < x <= 0.3)

摘要

The crystallographic parameters of CuIn2Se4 possessing a CdAl2S4-type crystal structure and Cu(In1-xGax)(2)Se-4 solid solutions based on it were determined. The evaluated magnetic properties confirmed the presence of copper(II) in the crystal lattices of CuIn2Se4 and Cu(In0.7Ga0.3)(2)Se-4 solid solutions, which are semiconductors with band gaps of >= 1.08 and >= 1.17 eV (at 298 K), respectively, found from their cathodoluminescence spectra.