Dye sensitized solar cell with bipyridyl ligands such as N3 dye has absorption upto 800nm and the co-efficent of absorption is less. So this paper explains about the synthesis and characterization of new terpyridine complexes with substitution at 4th position to replace black dye and subsequently ligated to Ruthenium metal covering the longer absorption region of solar spectrum from higher to lower energy with good absorption co-efficient. Synthesis of new Ru(II) complexes containing donor and acceptor moieties along with anchoring group to bind the surface of TiO2 was the main objective of this paper.
