Organic photovoltaics (OPVs) are a promising technology for costeffective and scalable production of renewable energy. Current research in OPV materials focuses primarily on the design and synthesis of semiconducting polymers capable of both light absorption and charge transport. In order to develop OPV materials that exhibit not only favorable electronic properties but also batch-to-batch consistency, electroactive small molecules have recently received attention as alternatives to polymers. In this study, we report the design and synthesis of an acceptor- donor-donor-donor -acceptor (A-D'-D-D'-A) structured small-molecule materials based on a rigid 2-D benzodithiophene (BDT) central building block and cylcopentadithiophene (CPDT) linkers. The photo-physical, electrochemical and photovoltaic properties of the new two-small molecules organic solar cells have been studied and compared.