Abstract
The electric conduction and photoconduction of sandwich-type poly-N-epoxypropylcarbazole (PEPC) and 3,6-di-Br-poly-N-epoxypropylcarbazole (3,6-di-Br-PEPC) films containing 33 wt.% of the dye 1,8-naphthoylene-1′, 2′-benzimidazole (NBI) have been investigated. It has been established that the PEPC films, as compared to the 3,6-di-Br-PEPC films, have a higher electric conduction and a lower photosensitivity and an electric field exerts a stronger quenching effect on the photoluminescence of the first-mentioned films. Analysis of the voltampere and lux-ampere characteristics and the kinetics of electric conduction of these films has shown that the space charge and recombination via dye molecules in them influence their electric conduction and photoconduction. The volume recombination of charges is radiative in character.
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