The effect of adsorbed photoexcited molecules on the change of charge of paramagnetic traps in a dielectric-semiconductor structure

The methods of photocharge injection and electron paramagnetic resonance are used in the germanium - germanium dioxide-adsorbed dye (coumarin) structures to obtain information about the transition of the $E_1$- and $E_2$-oxide centers from a nonparamagnetic to a paramagnetic state when the dye molecules are excited. It is shown that in the structures with adsorbed dye, the electron transitions in the solid are stimulated by the migration of electronic excitation which takes place in the direction from the adsorbed molecules to the defects in the oxide layer, as well as in the· direction from the oxide defects which capture carriers, to the adsorbed dye molecules.