title: Novel heteroleptic Ru(II) complexes: synthesis, characterization and application in dye-sensitized solar cells.
abstract: Six new heteroleptic Ru(II) complexes (MC118, MC120-123 and MC126), of general formula Ru(L1)(L2)(NCS)2, where L1 and L2 are respectively dicarboxylated and π-conjugated functionalized (dissymmetric) bipyridine ligands, were designed, synthesized and applied as sensitizers in dye-sensitized solar cells. These complexes were characterized both experimentally and theoretically, showing promising optical properties, with higher extinction coefficients compared to the prototypical N719 dye. When employed in working devices, in combination with a liquid I(-)/I3(-) redox electrolyte, the investigated sensitizers have shown power conversion efficiencies between 6.0 and 8.0%, comparable with the reference N719 dye tested under similar fabrication and evaluation conditions.
authors: Computational Laboratory for Hybrid and Organic Photovoltaics, Istituto CNR di Scienze e Tecnologie Molecolari, via Elce di Sotto 8, 06123, Perugia, Italy. filippo@thch.unipg.it.
authors: Gabriele
authors: G
authors: Marotta
authors: Ch Pavan
authors: ChP
authors: Kumar
authors: Maria Grazia
authors: MG
authors: Lobello
authors: Francesca
authors: F
authors: Cavazzini
authors: Paolo
authors: P
authors: Salvatori
authors: Koyyada
authors: K
authors: Ganesh
authors: Mohammad Khaja
authors: MK
authors: Nazeeruddin
authors: Malapaka
authors: M
authors: Chandrasekharam
authors: Filippo
authors: F
authors: De Angelis