Prototypes of photovoltaic cells based on subphthalocyanine with a lower buffer layer

Prototype organic photovoltaic cells containing a planar subphthalocyanine/fullerene heterojunction are fabricated. Their current-voltage characteristics are measured and basic photoconversion parameters are estimated. It was found that the morphology and conductive properties of the photoactive phthalocyanine layer depend on the presence and nature of the molecular sublayer on the anode surface onto which it is deposited. The use of indium chloride phthalocyanine as a sublayer increases the photoconversion efficiency in cells by a factor of 15.