Degradation processes in topologically disordered solids: 3. Bimolecular kinetics of the decay of radiative effects in CGS

Abstract

The features of the bimolecular kinetics of the decay of the radiative-optical properties of chalcogenide glasses in the ternary systems As₂S₃–GeS₂, Sb₂S₃–GeS₂, and As₂S₃–Ge₂S₃ as a function of their chemical composition are examined. It is shown that in the glasses of the stoichiometric systems As₂S₃–GeS₂ and Sb₂S₃–GeS₂, the observed concentration dependencies are monotonic, whereas in samples of the non-stoichiometric system As₂S₃–Ge₂S₃, the kinetic parameters exhibit an extreme character at the point of the presumed 2D–3D phase transition.