The process for formation of (Xe₂D)* excimer complexes in ternary solid solutions Kr-Xe-D₂

The experimental data on VUV and UV cathodoluminescence spectra of ternary solid solution Kr-Xe-D₂ and binary solid cryo alloys Xe-D₂, Kr-D₂, and Xe-Kr are presented. The intensity distribution of spectral bands as function of dopant concentration and the dose dependencies of luminescence were studied. All the emission bands were identified. It is shown that the energy transfer through the system of intrinsic electronic excitations of the matrix is responsible for the formation of the emitting states. It was found that the three-component solid solutions emission from (Xe₂D)* complexes demonstrated. It was established that the formation of the (Xe₂D)* complexes was a multistage process which include, as the first stage, the formation of an unstable intermediate [XeD₂]* state whose radiationless decay resulted in a to dissociation of the doped molecular deuterium. It is suggested that the formation of the [XeD₂]* complexes is due to a high proton affinity of Xe and a negative electron affinity of the D₂ molecule, resulting in a resemblance of the intermediate complex to a charge transfer one