DIMERIC CARBON MATERIALS AND THEIR USE IN ORGANIC PHOTOVOLTAIC DEVICES

摘要

Carbon material of general structure (I) A-C(=O)-O-B-O-C(=0)-A' (I) wherein A and A' which may be the same or different are derived from fullerene or fullerene derivatives and B is a C1-C30 divalent linker. Higher homologues of said carbon material having respectively one central linker of type B and, attached thereto, three or four fullerene or fullerene derivatives of type A. Compositions comprising such materials and their use in organic photovoltaic devices.