THE EFFECT OF ADSORBED OXYGEN ON THE CONDUCTIVITY OF METAL-FREE PHTHALOCYANINE FILMS

摘要

The effect of adsorbed oxygen on the conductivity of vacuum-deposited metal-free phthalocyanine films was studied using the method of cyclic thermodesorption. The results are interpreted in terms of the two-level hopping conduction model. It is shown that the electron transport proceeds by hopping via combined system involving the intrinsic and impurity localized states.