π-Conjugated donor and donor-acceptor metallo-polymera

Abstract

(Figure Presented) Two zinc(II)- and two ruthenium(II) containing π-conjugated metallo-polymers were synthesized and characterized in detail. We could prove by SEC, analytical ultracentrifugation (AUC) and viscosimetry the ruthenium(II) metallo-polymers to be high molar mass materials (Mfs = 20 000 g·mol-1 Ru1-2; Mfs = 34 000 g · mol-1 Ru1) exhibiting intrinsic viscosities of up to [η] = 192· cm3 · g-1. Applying spin-coating we produced homogeneous films of the polymers and could, subsequently, investigate the photophysical properties in the solid state. Introducing the Ru(II) metallo-polymers mixed with PCBM[60] as photoactive layer in bulk-heterojunction solar cells resulted in very low efficiencies due to morphology problems. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA.