| abstract |
The present invention relates to an alkylated dithieno[2,3-d:2',3'-d']-s-dicyclopentabenzo[1,2-b:5,6- B'] novel organic semiconductor oligomers or polymers of dithiophene units; processes for their preparation and educts or intermediates used therein; polymers, blends, mixtures and formulations thereof, etc.; Use of a polymer, polymer, blend, mixture, and formulation as a semiconductor in an organic electronic (OE) device, particularly an organic photovoltaic (OPV) device or an organic photodetector (OPD), and the like OE, OPV and OPD devices for oligomers, polymers, blends, mixtures or formulations. |