Ohmic and space-sнarge limited conductivity in dihydrodibenzotetraaza[14]annulene thin films
Abstract
The electrophysical properties of thermally deposited thin films of dihydrodibenzotetraaza[14]annulene were investigated applying ohmic gold electrodes to them. The volt-ampere characteristic of planar thin films symmetric structure Au – dihydrodibenzotetraaza[14]annulene – Au under dark condition was measured. The direct current conductivity in this structure at room temperature and at a small applied voltage was ohmic, carried out by thermally generated carriers, and the conductivity, limited by space charges carried out by the injected carriers, was observed at a higher applied voltage. The transition from ohmic conductivity to conductivity limited by space charges occurred at an electric field strength in a thin film of Е ~ 4 × 104 V/m.
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