NOVELTY - Photoelectric conversion material that acts as an electron donor for donating an electron or an electron acceptor for accepting an electron, comprises a polymer having at least one structural unit comprising graphenes (I)-(IV).    USE - The photoelectric conversion material is useful as electron donor (preferred) or electron acceptor in photoelectric conversion layer of organic photovoltaic cell (claimed).    ADVANTAGE - The photoelectric conversion material: exhibits excellent electron donor or acceptor capability and can be simply used with ease in the photoelectric conversion layer of the organic photovoltaic cell; utilizes the polymer that excellently absorbs long-wavelength (near-infrared) light, thus exhibiting improved sunlight utilization efficiency; and provides the organic photovoltaic cell that exhibits active exciton generation property, high open circuit voltage and improved power conversion efficiency, has lightweight and small load on its installation site, and requires only a smaller area for achieving desired power generation capacity.    DETAILED DESCRIPTION - Photoelectric conversion material that acts as an electron donor for donating an electron or an electron acceptor for accepting an electron, comprises a polymer having at least one structural unit comprising graphenes of formulae (I)-(IV). INDEPENDENT CLAIMS are also included for:    (1) producing the photoelectric conversion material, comprising polymerizing a phenylene derivative to obtain a polyphenylene compound of formula (V), and reacting the (V) to obtain the polymer having the structural unit comprising graphenes (I)-(IV); and    (2) an organic photovoltaic cell (10) comprising the photoelectric conversion material, where the organic photovoltaic cell has a photoelectric conversion layer (16), and the photoelectric conversion layer contains the photoelectric conversion material as an electron donor.    n = not defined.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic longitudinal cross-sectional view of the bulk heterojunction-type organic photovoltaic cell.    Photovoltaic cell (10)    Transparent electrode (12)    Hole transport layer (14)    Photoelectric conversion layer (16)    Back electrode (18)