On the light intensity dependence of short-circuit current of bilayer organic photovoltaic cells

The work presents a model of light intensity dependence of short-circuit current for a bilayer organic system. The model is based on the assumption of a uniform electric field in both organic layers and it concerns a bimolecular and monomolecular recombination of charge carriers at a heterojunction interface. The comparison between theoretical calculations and experimental results carried out on the system formed from copper phthalocyanine or bormophosphorus phthaocyanine and perylene dye is presented in the work. A good correlation between theoretical and experimental results has been achieved.