15min:

A. N. OGURTSOV, E. V. SAVCHENKO, O. N. GRIGORASHCHENKO, O. M. SOKOLOV, Verkin Institute for Low temperature Physics \& Engineering, 47 Lenin Avenue, 310164 Kharkov, Ukraine.

Electronically induced formation of intrinsic ionic centers in the configuration of rare gas molecular ions (R₂⁺) was studied by low temperature spectroscopy methods. Based on the cathodoluminescence investigation of the ionic excimers (R₂²⁺) , thermoluminescence data on self-trapped holes (R₂⁺) and selective excitation by synchrotron radiation of states involved , the set of lattice reactions were analyzed: 1)~free exciton ionization accompanied by trapping of charge carriers: R_ex^* -> R₂⁺ + e^-; 2)~`dressing' of trapped hole by exciton with subsequent H-band emission: R₂⁺ + R_ex^* -> R₂^+* -> R₂^* + h(H-band); 3)~bulk recombination of trapped hole with electron following by exciton self-trapping and M-band emission: ^bulkR₂⁺ + e^- -> ^bulkR₂^* -> R + R + h(M-band); 4)~surface recombination of trapped hole with electron following by desorption of excimers and W-band emission: ^surfR₂⁺ + e^- -> ^desorbR₂^* -> R + R + h(W-band).