Synthesis and characterization of naphthyridine and acridinedione ligands coordinated ruthenium (II) complexes and their applications in dye-sensitized solar cells

Naphthyridine and acridinedione coordinated ruthenium (II) complexes were synthesized and characterized. Their applications in dye-sensitized solar cells were demonstrated. From the I–V curves, the short-circuit photocurrent (ISC) and the open-circuit photovoltage (VOC) were measured. A maximum current conversion efficiency (η) of about 7.7% was obtained for 5-amino-4-phenyl-2-(4-methylphenyl)-7-(pyrrolidin-1-yl)-1,6-naphthyridine-8-carbonitrile (pmpn) coordinated ruthenium (II) complex.